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If you supply some arguments but not * others, the missing arguments are set to 0. If you supply any arguments, you * must supply at least the year, month, and day. You can omit the hours, minutes, * seconds, and milliseconds. * * The date is measured in milliseconds since midnight 01 January, 1970 UTC. A day * holds 86,400,000 milliseconds. The `Date` object range is -100,000,000 days to * 100,000,000 days relative to 01 January, 1970 UTC. * * The `Date` object provides uniform behavior across platforms. * * The `Date` object supports a number of UTC (universal) methods, as well as * local time methods. UTC, also known as Greenwich Mean Time (GMT), refers to the * time as set by the World Time Standard. The local time is the time known to the * computer where JavaScript is executed. * * Invoking `Date` in a non-constructor context (i.e., without the `new` operator) * will return a string representing the current time. * * Note that `Date` objects can only be instantiated by calling `Date` or using it * as a constructor; unlike other JavaScript object types, `Date` objects have no * literal syntax. * * # Several ways to assign dates * * The following example shows several ways to assign dates: * *     today = new Date(); *     birthday = new Date("December 19, 1989 03:24:00"); *     birthday = new Date(1989,11,19); *     birthday = new Date(1989,11,17,3,24,0); * * # Calculating elapsed time * * The following examples show how to determine the elapsed time between two dates: * *     // using static methods *     var start = Date.now(); *     // the event you'd like to time goes here: *     doSomethingForALongTime(); *     var end = Date.now(); *     var elapsed = end - start; // time in milliseconds * *     // if you have Date objects *     var start = new Date(); *     // the event you'd like to time goes here: *     doSomethingForALongTime(); *     var end = new Date(); *     var elapsed = end.getTime() - start.getTime(); // time in milliseconds * *     // if you want to test a function and get back its return *     function printElapsedTime (fTest) { *         var nStartTime = Date.now(), vReturn = fTest(), nEndTime = Date.now(); *         alert("Elapsed time: " + String(nEndTime - nStartTime) + " *         milliseconds"); *         return vReturn; *     } * *     yourFunctionReturn = printElapsedTime(yourFunction); * * # ISO 8601 formatted dates * * The following example shows how to formate a date in an ISO 8601 format using * UTC: * *     // use a function for the exact format desired... *     function ISODateString(d){ *     function pad(n){return n<10 ? '0'+n : n} *     return d.getUTCFullYear()+'-' *         + pad(d.getUTCMonth()+1)+'-' *         + pad(d.getUTCDate())+'T' *         + pad(d.getUTCHours())+':' *         + pad(d.getUTCMinutes())+':' *         + pad(d.getUTCSeconds())+'Z'} * *     var d = new Date(); *     print(ISODateString(d)); // prints something like 2009-09-28T19:03:12Z * * <div class="notice"> * Documentation for this class comes from <a href="https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date">MDN</a> * and is available under <a href="http://creativecommons.org/licenses/by-sa/2.0/">Creative Commons: Attribution-Sharealike license</a>. * </div> */<span id='Date-method-constructor'>/**</span> * @method constructor * Creates new Date object. * * @param {Number/String} [year] * Either UNIX timestamp, date string, or year (when month and day parameters also provided): * * - Integer value representing the number of milliseconds since 1 January 1970 *   00:00:00 UTC (Unix Epoch). * * - String value representing a date. The string should be in a format recognized *   by the parse method (IETF-compliant RFC 1123 timestamps). * * - Integer value representing the year. For compatibility (in order to avoid the *   Y2K problem), you should always specify the year in full; use 1998, rather *   than 98. * * @param {Number} [month] * Integer value representing the month, beginning with 0 for January to 11 * for December. * @param {Number} [day] * Integer value representing the day of the month (1-31). * @param {Number} [hour] * Integer value representing the hour of the day (0-23). * @param {Number} [minute] * Integer value representing the minute segment (0-59) of a time reading. * @param {Number} [second] * Integer value representing the second segment (0-59) of a time reading. * @param {Number} [millisecond] * Integer value representing the millisecond segment (0-999) of a time reading. *///Methods<span id='Date-static-method-now'>/**</span> * @method now * @static * Returns the numeric value corresponding to the current time. * * The `now` method returns the milliseconds elapsed since 1 January 1970 00:00:00 UTC up until now as * a number. * * When using `now` to create timestamps or unique IDs, keep in mind that the resolution may be 15 * milliseconds on Windows, so you could end up with several equal values if `now` is called multiple * times within a short time span. * * @return {Number} Returns the number of milliseconds elapsed since 1 January 1970 00:00:00 UTC. */<span id='Date-static-method-parse'>/**</span> * @method parse * @static * Parses a string representation of a date, and returns the number of milliseconds * since January 1, 1970, 00:00:00, local time. * * The `parse` method takes a date string (such as `"Dec 25, 1995"`) and returns the number of * milliseconds since January 1, 1970, 00:00:00 UTC. The local time zone is used to interpret * arguments that do not contain time zone information. This function is useful for setting date * values based on string values, for example in conjunction with the `setTime` method and the * {@link Date} object. * * Given a string representing a time, parse returns the time value. It accepts the IETF standard (RFC * 1123 Section 5.2.14 and elsewhere) date syntax: `"Mon, 25 Dec 1995 13:30:00 GMT"`. It understands * the continental US time-zone abbreviations, but for general use, use a time-zone offset, for * example, `"Mon, 25 Dec 1995 13:30:00 GMT+0430"` (4 hours, 30 minutes east of the Greenwich * meridian). If you do not specify a time zone, the local time zone is assumed. GMT and UTC are * considered equivalent. * * ### Using parse * * If `IPOdate` is an existing `Date` object, then you can set it to August 9, 1995 (local time) as * follows: * *     IPOdate.setTime(Date.parse("Aug 9, 1995")); * * Some other examples: * *     // Returns 807937200000 in time zone GMT-0300, and other values in other *     // timezones, since the argument does not specify a time zone. *     Date.parse("Aug 9, 1995"); * *     // Returns 807926400000 no matter the local time zone. *     Date.parse("Wed, 09 Aug 1995 00:00:00 GMT"); * *     // Returns 807937200000 in timezone GMT-0300, and other values in other *     // timezones, since there is no time zone specifier in the argument. *     Date.parse("Wed, 09 Aug 1995 00:00:00"); * *     // Returns 0 no matter the local time zone. *     Date.parse("Thu, 01 Jan 1970 00:00:00 GMT"); * *     // Returns 14400000 in timezone GMT-0400, and other values in other *     // timezones, since there is no time zone specifier in the argument. *     Date.parse("Thu, 01 Jan 1970 00:00:00"); * *     // Returns 14400000 no matter the local time zone. *     Date.parse("Thu, 01 Jan 1970 00:00:00 GMT-0400"); * * @param {String} dateString A string representing a date. * @return {Number} Number of milliseconds since January 1, 1970, 00:00:00, local time. */<span id='Date-static-method-UTC'>/**</span> * @method UTC * @static * Accepts the same parameters as the longest form of the constructor, and returns * the number of milliseconds in a `Date` object since January 1, 1970, 00:00:00, * universal time. * * `UTC` takes comma-delimited date parameters and returns the number of milliseconds between January * 1, 1970, 00:00:00, universal time and the time you specified. * * You should specify a full year for the year; for example, 1998. If a year between 0 and 99 is * specified, the method converts the year to a year in the 20th century (1900 + year); for example, * if you specify 95, the year 1995 is used. * * The `UTC` method differs from the `Date` constructor in two ways. * *   `Date.UTC` uses universal time instead of the local time. * *   `Date.UTC` returns a time value as a number instead of creating a `Date` object. * * If a parameter you specify is outside of the expected range, the `UTC` method updates the other * parameters to allow for your number. For example, if you use 15 for month, the year will be * incremented by 1 (year + 1), and 3 will be used for the month. * * Because `UTC` is a static method of `Date`, you always use it as `Date.UTC()`, rather than as a * method of a `Date` object you created.* * The following statement creates a `Date` object using GMT instead of local time: * *     gmtDate = new Date(Date.UTC(96, 11, 1, 0, 0, 0)); * * @param {Number} year A year after 1900. * @param {Number} month An integer between 0 and 11 representing the month. * @param {Number} date An integer between 1 and 31 representing the day of the month. * @param {Number} hrs An integer between 0 and 23 representing the hours. * @param {Number} min An integer between 0 and 59 representing the minutes. * @param {Number} sec An integer between 0 and 59 representing the seconds. * @param {Number} ms An integer between 0 and 999 representing the milliseconds. * @return {Number} Number of milliseconds since January 1, 1970, 00:00:00, universal time. *///Methods<span id='Date-method-getDate'>/**</span> * @method getDate * Returns the numeric value corresponding to the current time. * * The second statement below assigns the value 25 to the variable `day`, based on the value of the * `Date` object `Xmas95`. * *     Xmas95 = new Date("December 25, 1995 23:15:00") *     day = Xmas95.getDate() * * @return {Number} Value between 1 and 31. */<span id='Date-method-getDay'>/**</span> * @method getDay * Returns the numeric value corresponding to the current time. * * The value returned by `getDay` is an integer corresponding to the day of the week: 0 for Sunday, 1 * for Monday, 2 for Tuesday, and so on. * * The second statement below assigns the value 1 to `weekday`, based on the value of the `Date` * object `Xmas95`. December 25, 1995, is a Monday. * *     Xmas95 = new Date("December 25, 1995 23:15:00"); *     weekday = Xmas95.getDay(); * * @return {Number} A numeric representation of the day from Sunday (0) to * Saturday (6). */<span id='Date-method-getFullYear'>/**</span> * @method getFullYear * Returns the numeric value corresponding to the current time. * * The value returned by `getFullYear` is an absolute number. For dates between the years 1000 and * 9999, `getFullYear` returns a four-digit number, for example, 1995. Use this function to make sure * a year is compliant with years after 2000. * * Use this method instead of the `getYear` method. * * The following example assigns the four-digit value of the current year to the variable yr. * *     var today = new Date(); *     var yr = today.getFullYear(); * * @return {Number} Four digit representation of the year. */<span id='Date-method-getHours'>/**</span> * @method getHours * Returns the numeric value corresponding to the current time. * * The second statement below assigns the value 23 to the variable `hours`, based on the value of the * `Date` object `Xmas95`. * *     Xmas95 = new Date("December 25, 1995 23:15:00") *     hours = Xmas95.getHours() * * @return {Number} Value between 0 and 23, using 24-hour clock. */<span id='Date-method-getMilliseconds'>/**</span> * @method getMilliseconds * Returns the numeric value corresponding to the current time. * * The following example assigns the milliseconds portion of the current time to the variable ms. * *     var ms; *     Today = new Date(); *     ms = Today.getMilliseconds(); * * @return {Number} A number between 0 and 999. */<span id='Date-method-getMinutes'>/**</span> * @method getMinutes * Returns the numeric value corresponding to the current time. * * The second statement below assigns the value 15 to the variable `minutes`, based on the value of * the `Date` object `Xmas95`. * *     Xmas95 = new Date("December 25, 1995 23:15:00") *     minutes = Xmas95.getMinutes() * * @return {Number} Value between 0 and 59. */<span id='Date-method-getMonth'>/**</span> * @method getMonth * Returns the numeric value corresponding to the current time. * * The second statement below assigns the value 11 to the variable `month`, based on the value of the * `Date` object `Xmas95`. * *     Xmas95 = new Date("December 25, 1995 23:15:00") *     month = Xmas95.getMonth() * * @return {Number} An integer between 0 and 11. 0 corresponds to January, 1 to February, and so on. */<span id='Date-method-getSeconds'>/**</span> * @method getSeconds * Returns the numeric value corresponding to the current time. * * The second statement below assigns the value 30 to the variable `secs`, based on the value of the * `Date` object `Xmas95`. * *     Xmas95 = new Date("December 25, 1995 23:15:30") *     secs = Xmas95.getSeconds() * * @return {Number} Value between 0 and 59. */<span id='Date-method-getTime'>/**</span> * @method getTime * Returns the numeric value corresponding to the current time. * * The value returned by the `getTime` method is the number of milliseconds since 1 January 1970 * 00:00:00 UTC. You can use this method to help assign a date and time to another `Date` object. * * This method is functionally equivalent to the `valueOf` method. * * Using getTime for copying dates * * Constructing a date object with the identical time value. * *     var birthday = new Date(1994, 12, 10); *     var copy = new Date(); *     copy.setTime(birthday.getTime()); * * Measuring execution time * * Subtracting two subsequent getTime calls on newly generated Date objects, give the time span * between these two calls. This can be used to calculate the executing time of some operations. * *     var end, start; * *     start = new Date(); *     for (var i = 0; i < 1000; i++) *         Math.sqrt(i); *     end = new Date(); * *     console.log("Operation took " + (end.getTime() - start.getTime()) + " msec"); * * @return {Number} Number of milliseconds since 1/1/1970 (GMT). */<span id='Date-method-getTimezoneOffset'>/**</span> * @method getTimezoneOffset * Returns the numeric value corresponding to the current time. * * The time-zone offset is the difference, in minutes, between UTC and local time. Note that this * means that the offset is positive if the local timezone is behind UTC and negative if it is ahead. * For example, if your time zone is UTC+10 (Australian Eastern Standard Time), -600 will be returned. * Daylight savings time prevents this value from being a constant even for a given locale * *     x = new Date() *     currentTimeZoneOffsetInHours = x.getTimezoneOffset()/60 * * @return {Number} Minutes between GMT and local time. */<span id='Date-method-getUTCDate'>/**</span> * @method getUTCDate * Returns the numeric value corresponding to the current time. * * The following example assigns the day portion of the current date to the variable `d`. * *     var d; *     Today = new Date(); *     d = Today.getUTCDate(); * * @return {Number} Integer between 1 and 31 representing the day. */<span id='Date-method-getUTCDay'>/**</span> * @method getUTCDay * Returns the numeric value corresponding to the current time. * * The following example assigns the weekday portion of the current date to the variable `weekday`. * *     var weekday; *     Today = new Date() *     weekday = Today.getUTCDay() * * @return {Number} A numeric representation of the day from Sunday (0) to * Saturday (6). */<span id='Date-method-getUTCFullYear'>/**</span> * @method getUTCFullYear * Returns the numeric value corresponding to the current time. * * The following example assigns the four-digit value of the current year to the variable `yr`. * *     var yr; *     Today = new Date(); *     yr = Today.getUTCFullYear(); * * @return {Number} Four digit representation of the year. */<span id='Date-method-getUTCHours'>/**</span> * @method getUTCHours * Returns the numeric value corresponding to the current time. * * The following example assigns the hours portion of the current time to the variable `hrs`. * *     var hrs; *     Today = new Date(); *     hrs = Today.getUTCHours(); * * @return {Number} Value between 0 and 23. */<span id='Date-method-getUTCMilliseconds'>/**</span> * @method getUTCMilliseconds * Returns the numeric value corresponding to the current time. * * The following example assigns the milliseconds portion of the current time to the variable `ms`. * *     var ms; *     Today = new Date(); *     ms = Today.getUTCMilliseconds(); * * @return {Number} Milliseconds portion of the Date. */<span id='Date-method-getUTCMinutes'>/**</span> * @method getUTCMinutes * Returns the numeric value corresponding to the current time. * * The following example assigns the minutes portion of the current time to the variable `min`. * *     var min; *     Today = new Date(); *     min = Today.getUTCMinutes(); * * @return {Number} Value between 0 and 59. */<span id='Date-method-getUTCMonth'>/**</span> * @method getUTCMonth * Returns the numeric value corresponding to the current time. * * The following example assigns the month portion of the current date to the variable `mon`. * *     var mon; *     Today = new Date(); *     mon = Today.getUTCMonth(); * * @return {Number} Value between 0 (January) and 11 (December).*/<span id='Date-method-getUTCSeconds'>/**</span> * @method getUTCSeconds * Returns the numeric value corresponding to the current time. * * The following example assigns the seconds portion of the current time to the variable `sec`. * *     var sec; *     Today = new Date(); *     sec = Today.getUTCSeconds(); * * @return {Number} Value between 0 and 59.*/<span id='Date-method-setDate'>/**</span> * @method setDate * Sets the day of the month (1-31) for a specified date according to local time. * * If the parameter you specify is outside of the expected range, `setDate` attempts to update the * date information in the `Date` object accordingly. For example, if you use 0 for `dayValue`, the * date will be set to the last day of the previous month. * * The second statement below changes the day for theBigDay to July 24 from its original value. * *     theBigDay = new Date("July 27, 1962 23:30:00") *     theBigDay.setDate(24) * * @param {Number} dayValue An integer from 1 to 31, representing the day of the month. * @return {Number} New date represented as milliseconds.*/<span id='Date-method-setFullYear'>/**</span> * @method setFullYear * Sets the full year (4 digits for 4-digit years) for a specified date according to * local time. * * If you do not specify the `monthValue` and `dayValue` parameters, the values returned from the * `getMonth` and `getDate` methods are used. * * If a parameter you specify is outside of the expected range, `setFullYear` attempts to update the * other parameters and the date information in the `Date` object accordingly. For example, if you * specify 15 for monthValue, the year is incremented by 1 (year + 1), and 3 is used for the month. * * theBigDay = new Date(); * theBigDay.setFullYear(1997); * * @param {Number} yearValue An integer specifying the numeric value of the year, for example, 1995. * @param {Number} monthValue An integer between 0 and 11 representing the months January through * December. * @param {Number} dayValue An integer between 1 and 31 representing the day of the month. If you * specify the `dayValue` parameter, you must also specify the `monthValue`. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setHours'>/**</span> * @method setHours * Sets the hours (0-23) for a specified date according to local time. * * If you do not specify the `minutesValue`, `secondsValue`, and `msValue` parameters, the values * returned from the `getUTCMinutes`, `getUTCSeconds`, and `getMilliseconds` methods are used. * * If a parameter you specify is outside of the expected range, setHours attempts to update the date * information in the `Date` object accordingly. For example, if you use 100 for `secondsValue`, the * minutes will be incremented by 1 (min + 1), and 40 will be used for seconds. * *     theBigDay.setHours(7) * * @param {Number} hoursValue An integer between 0 and 23, representing the hour. * @param {Number} minutesValue An integer between 0 and 59, representing the minutes. * @param {Number} secondsValue An integer between 0 and 59, representing the seconds. If you specify the * `secondsValue` parameter, you must also specify the `minutesValue`. * @param {Number} msValue A number between 0 and 999, representing the milliseconds. If you specify the * `msValue` parameter, you must also specify the `minutesValue` and `secondsValue`. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setMilliseconds'>/**</span> * @method setMilliseconds * Sets the milliseconds (0-999) for a specified date according to local time. * * If you specify a number outside the expected range, the date information in the `Date` object is * updated accordingly. For example, if you specify 1005, the number of seconds is incremented by 1, * and 5 is used for the milliseconds. * *     theBigDay = new Date(); *     theBigDay.setMilliseconds(100); * * @param {Number} millisecondsValue A number between 0 and 999, representing the milliseconds. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setMinutes'>/**</span> * @method setMinutes * Sets the minutes (0-59) for a specified date according to local time. * * If you do not specify the `secondsValue` and `msValue` parameters, the values returned from * `getSeconds` and `getMilliseconds` methods are used. * * If a parameter you specify is outside of the expected range, `setMinutes` attempts to update the * date information in the `Date` object accordingly. For example, if you use 100 for `secondsValue`, * the minutes (`minutesValue`) will be incremented by 1 (minutesValue + 1), and 40 will be used for * seconds. * *     theBigDay.setMinutes(45) * * @param {Number} minutesValue An integer between 0 and 59, representing the minutes. * @param {Number} secondsValue An integer between 0 and 59, representing the seconds. If you * specify the secondsValue parameter, you must also specify the `minutesValue`. * @param {Number} msValue A number between 0 and 999, representing the milliseconds. If you specify * the `msValue` parameter, you must also specify the `minutesValue` and `secondsValue`. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setMonth'>/**</span> * @method setMonth * Sets the month (0-11) for a specified date according to local time. * * If you do not specify the `dayValue` parameter, the value returned from the `getDate` method is * used. * * If a parameter you specify is outside of the expected range, `setMonth` attempts to update the date * information in the `Date` object accordingly. For example, if you use 15 for `monthValue`, the year * will be incremented by 1 (year + 1), and 3 will be used for month. * *     theBigDay.setMonth(6) * * @param {Number} monthValue An integer between 0 and 11 (representing the months January through * December). * @param {Number} dayValue An integer from 1 to 31, representing the day of the month. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setSeconds'>/**</span> * @method setSeconds * Sets the seconds (0-59) for a specified date according to local time. * * If you do not specify the `msValue` parameter, the value returned from the `getMilliseconds` method * is used. * * If a parameter you specify is outside of the expected range, `setSeconds` attempts to update the * date information in the `Date` object accordingly. For example, if you use 100 for `secondsValue`, * the minutes stored in the `Date` object will be incremented by 1, and 40 will be used for seconds. * *     theBigDay.setSeconds(30) * * @param {Number} secondsValue An integer between 0 and 59. * @param {Number} msValue A number between 0 and 999, representing the milliseconds. If you specify * the`msValue` parameter, you must also specify the `minutesValue` and `secondsValue`. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setTime'>/**</span> * @method setTime * Sets the Date object to the time represented by a number of milliseconds since * January 1, 1970, 00:00:00 UTC, allowing for negative numbers for times prior. * * Use the `setTime` method to help assign a date and time to another `Date` object. * *     theBigDay = new Date("July 1, 1999") *     sameAsBigDay = new Date() *     sameAsBigDay.setTime(theBigDay.getTime()) * * @param {Number} timeValue An integer representing the number of milliseconds since 1 January * 1970, 00:00:00 UTC. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setUTCDate'>/**</span> * @method setUTCDate * Sets the day of the month (1-31) for a specified date according to universal time. * * If a parameter you specify is outside of the expected range, `setUTCDate` attempts to update the * date information in the `Date` object accordingly. For example, if you use 40 for `dayValue`, and * the month stored in the `Date` object is June, the day will be changed to 10 and the month will be * incremented to July. * *     theBigDay = new Date(); *     theBigDay.setUTCDate(20); * * @param {Number} dayValue An integer from 1 to 31, representing the day of the month. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setUTCFullYear'>/**</span> * @method setUTCFullYear * Sets the full year (4 digits for 4-digit years) for a specified date according * to universal time. * * If you do not specify the `monthValue` and `dayValue` parameters, the values returned from the * `getMonth` and `getDate` methods are used. * * If a parameter you specify is outside of the expected range, `setUTCFullYear` attempts to update * the other parameters and the date information in the `Date` object accordingly. For example, if you * specify 15 for `monthValue`, the year is incremented by 1 (year + 1), and 3 is used for the month. * *     theBigDay = new Date(); *     theBigDay.setUTCFullYear(1997); * * @param {Number} yearValue An integer specifying the numeric value of the year, for example, 1995. * @param {Number} monthValue An integer between 0 and 11 representing the months January through * December. * @param {Number} dayValue An integer between 1 and 31 representing the day of the month. If you * specify the `dayValue` parameter, you must also specify the `monthValue`. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setUTCHours'>/**</span> * @method setUTCHours * Sets the hour (0-23) for a specified date according to universal time. * * If you do not specify the `minutesValue`, `secondsValue`, and `msValue` parameters, the values * returned from the `getUTCMinutes`, `getUTCSeconds`, and `getUTCMilliseconds` methods are used. * * If a parameter you specify is outside of the expected range, `setUTCHours` attempts to update the * date information in the `Date` object accordingly. For example, if you use 100 for `secondsValue`, * the minutes will be incremented by 1 (min + 1), and 40 will be used for seconds. * *     theBigDay = new Date(); *     theBigDay.setUTCHours(8); * * @param {Number} hoursValue An integer between 0 and 23, representing the hour. * @param {Number} minutesValue An integer between 0 and 59, representing the minutes. * @param {Number} secondsValue An integer between 0 and 59, representing the seconds. If you specify the * `secondsValue` parameter, you must also specify the `minutesValue`. * @param {Number} msValue A number between 0 and 999, representing the milliseconds. If you specify the * `msValue` parameter, you must also specify the `minutesValue` and `secondsValue`. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setUTCMilliseconds'>/**</span> * @method setUTCMilliseconds * Sets the milliseconds (0-999) for a specified date according to universal time. * * If a parameter you specify is outside of the expected range, `setUTCMilliseconds` attempts to * update the date information in the `Date` object accordingly. For example, if you use 1100 for * `millisecondsValue`, the seconds stored in the Date object will be incremented by 1, and 100 will * be used for milliseconds. * *     theBigDay = new Date(); *     theBigDay.setUTCMilliseconds(500); * * @param {Number} millisecondsValue A number between 0 and 999, representing the milliseconds. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setUTCMinutes'>/**</span> * @method setUTCMinutes * Sets the minutes (0-59) for a specified date according to universal time. * * If you do not specify the `secondsValue` and `msValue` parameters, the values returned from * `getUTCSeconds` and `getUTCMilliseconds` methods are used. * * If a parameter you specify is outside of the expected range, `setUTCMinutes` attempts to update the * date information in the `Date` object accordingly. For example, if you use 100 for `secondsValue`, * the minutes (`minutesValue`) will be incremented by 1 (`minutesValue` + 1), and 40 will be used for * seconds. * *     theBigDay = new Date(); *     theBigDay.setUTCMinutes(43); * * @param {Number} minutesValue An integer between 0 and 59, representing the minutes. * @param {Number} secondsValue An integer between 0 and 59, representing the seconds. If you specify the `secondsValue` parameter, you must also specify the `minutesValue`. * @param {Number} msValue A number between 0 and 999, representing the milliseconds. If you specify the `msValue` parameter, you must also specify the `minutesValue` and `secondsValue`. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setUTCMonth'>/**</span> * @method setUTCMonth * Sets the month (0-11) for a specified date according to universal time. * * If you do not specify the `dayValue` parameter, the value returned from the `getUTCDate` method is * used. * * If a parameter you specify is outside of the expected range, `setUTCMonth` attempts to update the * date information in the `Date` object accordingly. For example, if you use 15 for `monthValue`, the * year will be incremented by 1 (year + 1), and 3 will be used for month. * *     theBigDay = new Date(); *     theBigDay.setUTCMonth(11); * * @param {Number} monthValue An integer between 0 and 11, representing the months January through * December. * @param {Number} dayValue An integer from 1 to 31, representing the day of the month. * @return {Number} New date represented as milliseconds. */<span id='Date-method-setUTCSeconds'>/**</span> * @method setUTCSeconds * Sets the seconds (0-59) for a specified date according to universal time. * * If you do not specify the `msValue` parameter, the value returned from the `getUTCMilliseconds` * methods is used. * * If a parameter you specify is outside of the expected range, `setUTCSeconds` attempts to update the * date information in the `Date` object accordingly. For example, if you use 100 for `secondsValue`, * the minutes stored in the `Date` object will be incremented by 1, and 40 will be used for seconds. * *     theBigDay = new Date(); *     theBigDay.setUTCSeconds(20); * * @param {Number} secondsValue An integer between 0 and 59. * @param {Number} msValue A number between 0 and 999, representing the milliseconds. * @return {Number} New date represented as milliseconds. */<span id='Date-method-toDateString'>/**</span> * @method toDateString * Returns the "date" portion of the Date as a human-readable string in American English. * * {@link Date} instances refer to a specific point in time. Calling `toString` will return the * date formatted in a human readable form in American English. In SpiderMonkey, this consists of the * date portion (day, month, and year) followed by the time portion (hours, minutes, seconds, and time * zone). Sometimes it is desirable to obtain a string of the date portion; such a thing can be * accomplished with the `toDateString` method. * * The `toDateString` method is especially useful because compliant engines implementing ECMA-262 may * differ in the string obtained from `toString` for `Date` objects, as the format is implementation- * dependent and simple string slicing approaches may not produce consistent results across multiple * engines. * *     var d = new Date(1993, 6, 28, 14, 39, 7); *     println(d.toString()); // prints Wed Jul 28 1993 14:39:07 GMT-0600 (PDT) *     println(d.toDateString()); // prints Wed Jul 28 1993 * * @return {String} Human-readable string, in local time. */<span id='Date-method-toLocaleDateString'>/**</span> * @method toLocaleDateString * Returns the "date" portion of the Date as a string, using the current locale's * conventions. * * The `toLocaleDateString` method relies on the underlying operating system in formatting dates. It * converts the date to a string using the formatting convention of the operating system where the * script is running. For example, in the United States, the month appears before the date (04/15/98), * whereas in Germany the date appears before the month (15.04.98). If the operating system is not * year-2000 compliant and does not use the full year for years before 1900 or over 2000, * `toLocaleDateString` returns a string that is not year-2000 compliant. `toLocaleDateString` behaves * similarly to `toString` when converting a year that the operating system does not properly format. * * Methods such as `getDate`, `getMonth`, and `getFullYear` give more portable results than * `toLocaleDateString`. Use `toLocaleDateString` when the intent is to display to the user a string * formatted using the regional format chosen by the user. Be aware that this method, due to its * nature, behaves differently depending on the operating system and on the user's settings. * * In the following example, `today` is a `Date` object: * *     today = new Date(95,11,18,17,28,35) //months are represented by 0 to 11 *     today.toLocaleDateString() * * In this example, `toLocaleDateString` returns a string value that is similar to the following form. * The exact format depends on the platform, locale and user's settings. * *     12/18/95 * * You shouldn't use this method in contexts where you rely on a particular format or locale. * *     "Last visit: " + someDate.toLocaleDateString(); // Good example *     "Last visit was at " + someDate.toLocaleDateString(); // Bad example * * @return {String} Human-readable string that may be formatted differently depending * on the country. */<span id='Date-method-toLocaleString'>/**</span> * @method toLocaleString * Converts a date to a string, using the current locale's conventions. Overrides * the `Object.toLocaleString` method. * * The `toLocaleString` method relies on the underlying operating system in formatting dates. It * converts the date to a string using the formatting convention of the operating system where the * script is running. For example, in the United States, the month appears before the date (04/15/98), * whereas in Germany the date appears before the month (15.04.98). If the operating system is not * year-2000 compliant and does not use the full year for years before 1900 or over 2000, * `toLocaleString` returns a string that is not year-2000 compliant. `toLocaleString` behaves * similarly to `toString` when converting a year that the operating system does not properly format. * * Methods such as `getDate`, `getMonth`, `getFullYear`, `getHours`, `getMinutes`, and `getSeconds` * give more portable results than `toLocaleString`. Use `toLocaleString` when the intent is to * display to the user a string formatted using the regional format chosen by the user. Be aware that * this method, due to its nature, behaves differently depending on the operating system and on the * user's settings. * * In the following example, `today` is a `Date` object: * *     today = new Date(95,11,18,17,28,35); //months are represented by 0 to 11 *     today.toLocaleString(); * * In this example, `toLocaleString` returns a string value that is similar to the following form. The * exact format depends on the platform, locale and user's settings. * *     12/18/95 17:28:35 * * You shouldn't use this method in contexts where you rely on a particular format or locale. * *     "Last visit: " + someDate.toLocaleString(); // Good example *     "Last visit was at " + someDate.toLocaleString(); // Bad example * * @return {String} Human-readable string that may be formatted differently depending * on the country. */<span id='Date-method-toLocaleTimeString'>/**</span> * @method toLocaleTimeString * Returns the "time" portion of the Date as a string, using the current locale's * conventions. * * The `toLocaleTimeString` method relies on the underlying operating system in formatting dates. It * converts the date to a string using the formatting convention of the operating system where the * script is running. For example, in the United States, the month appears before the date (04/15/98), * whereas in Germany the date appears before the month (15.04.98). * * Methods such as `getHours`, `getMinutes`, and `getSeconds` give more consistent results than * `toLocaleTimeString`. Use `toLocaleTimeString` when the intent is to display to the user a string * formatted using the regional format chosen by the user. Be aware that this method, due to its * nature, behaves differently depending on the operating system and on the user's settings. * * In the following example, `today` is a `Date` object: * *     today = new Date(95,11,18,17,28,35) //months are represented by 0 to 11 *     today.toLocaleTimeString() * * In this example, `toLocaleTimeString` returns a string value that is similar to the following form. * The exact format depends on the platform. * *     17:28:35 * * You shouldn't use this method in contexts where you rely on a particular format or locale. * *     "Last visit: " + someDate.toLocaleTimeString(); // Good example *     "Last visit was at " + someDate.toLocaleTimeString(); // Bad example * * @return {String} Human-readable string that may be formatted differently depending * on the country. */<span id='Date-method-toString'>/**</span> * @method toString * Returns a string representing the specified Date object. Overrides the * `Object.prototype.toString` method. * * The `Date` object overrides the toString method of the Object object; it does not inherit * `Object.toString`. For `Date` objects, the `toString` method returns a string representation of the * object. * * `toString` always returns a string representation of the date in American English. * * JavaScript calls the `toString` method automatically when a date is to be represented as a text * value or when a date is referred to in a string concatenation. * * The following assigns the `toString` value of a `Date` object to `myVar`: * *     x = new Date(); *     myVar=x.toString();   //assigns a value to myVar similar to: *     //Mon Sep 28 1998 14:36:22 GMT-0700 (Pacific Daylight Time) * * @return {String} Human-readable string of the date in local time. */<span id='Date-method-toTimeString'>/**</span> * @method toTimeString * Returns the "time" portion of the Date as a human-readable string. * * {@link Date} instances refer to a specific point in time. Calling `toString` will return the * date formatted in a human readable form in American English. In SpiderMonkey, this consists of the * date portion (day, month, and year) followed by the time portion (hours, minutes, seconds, and * time zone). Sometimes it is desirable to obtain a string of the time portion; such a thing can be * accomplished with the `toTimeString` method. * * The `toTimeString` method is especially useful because compliant engines implementing ECMA-262 may * differ in the string obtained from `toString` for `Date` objects, as the format is implementation- * dependent; simple string slicing approaches may not produce consistent results across multiple * engines. * *     var d = new Date(1993, 6, 28, 14, 39, 7); *     println(d.toString()); // prints Wed Jul 28 1993 14:39:07 GMT-0600 (PDT) *     println(d.toTimeString()); // prints 14:39:07 GMT-0600 (PDT) * * @return {String} Human-readable string of the date in local time. */<span id='Date-method-toUTCString'>/**</span> * @method toUTCString * Converts a date to a string, using the universal time convention. * * The value returned by `toUTCString` is a readable string in American English in the UTC time zone. * The format of the return value may vary according to the platform. * *     var today = new Date(); *     var UTCstring = today.toUTCString(); *     // Mon, 03 Jul 2006 21:44:38 GMT * * @return {String} String of the date in UTC. */<span id='Date-method-valueOf'>/**</span> * @method valueOf * Returns the primitive value of a Date object. Overrides the * Object.prototype.valueOf method. * * The `valueOf` method returns the primitive value of a `Date` object as a number data type, the * number of milliseconds since midnight 01 January, 1970 UTC. * * This method is functionally equivalent to the `getTime` method. * * This method is usually called internally by JavaScript and not explicitly in code. * *     x = new Date(56, 6, 17); *     myVar = x.valueOf();      //assigns -424713600000 to myVar * * @return {Number} Date represented as milliseconds. */</pre></body></html>
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