![]() Integer value representing the millisecond segment of a time. Integer value representing the second segment of a time. Integer value representing the minute segment of a time. Integer value between 0 and 23 representing the hour of the day. Integer value representing the day of the month. Integer value representing the month, beginning with 0 for January to 11 for December. Values from 0 to 99 map to the years 1900 to 1999. For example, new Date(2020, 5, 0) will return May 31st, 2020. Similarly, if any parameter underflows, it "borrows" from the higher positions. For example, if a monthIndex greater than 11 is passed in, those months will cause the year to increment if a minutes greater than 59 is passed in, hours will increment accordingly, etc. If any parameter overflows its defined bounds, it "carries over". Date.UTC() accepts similar parameters but interprets the components as UTC and returns a timestamp. ![]() The parameter values are all evaluated against the local time zone, rather than UTC. Any missing fields are given the lowest possible value ( 1 for day and 0 for every other component). Given at least a year and month, this form of Date() returns a Date object whose component values (year, month, day, hour, minute, second, and millisecond) all come from the following parameters. Individual date and time component values Otherwise, the resulting primitive is further coerced to a number and treated as a timestamp. If the result is a string, it will be parsed as a date string. All other values are converted to primitives. JavaScript setDate() JavaScript Date : var d new Date() d.setDate(15) d : var d new Date() d.setDate(15) document.write(d) setDate(). When one parameter is passed to the Date() constructor, Date instances are specially treated. This is equivalent to new Date(dateObject.valueOf()), except the valueOf() method is not called. This effectively makes a copy of the existing Date object with the same date and time. Date object dateObjectĪn existing Date object. See date time string format for caveats on using different formats. Date string dateStringĪ string value representing a date, parsed and interpreted using the same algorithm implemented by Date.parse(). Time value or timestamp number valueĪn integer value representing the timestamp (the number of milliseconds since midnight at the beginning of January 1, 1970, UTC - a.k.a. The returned date's timestamp is the same as the number returned by Date.now(). When no parameters are provided, the newly-created Date object represents the current date and time as of the time of instantiation. There are five basic forms for the Date() constructor: No parameters Object.prototype._lookupSetter_() Deprecated.Object.prototype._lookupGetter_() Deprecated.Object.prototype._defineSetter_() Deprecated.Object.prototype._defineGetter_() Deprecated.If you'd like to contribute to the data, please check out and send us a pull request. The compatibility table in this page is generated from structured data. The definition of '' in that specification. tDate(22) // Specifications Specification Examples Using setDate() var theBigDay = new Date(1962, 6, 7) // For example, if 0 is provided for dayValue, the date will be set to the last day of the previous month. If the dayValue is outside of the range of date values for the month, setDate() will update the Date object accordingly. The number of milliseconds between 1 January 1970 00:00:00 UTC and the given date (the Date object is also changed in place). Syntax tDate( dayValue) Parameters dayValue An integer representing the day of the month. The setDate() method sets the day of the Date object relative to the beginning of the currently set month.
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