Language Reference |
See Also Methods Properties
Enables basic storage and retrieval of dates and times.
var newDateObj = new Date()
var newDateObj = new Date(dateVal)
var newDateObj = new Date(year, month, date[, hours[, minutes[, seconds[,ms]]]])
The Date object constructor syntax has these parts:
Part Description dateVal If a numeric value, dateVal represents the number of milliseconds in Universal Coordinated Time between the specified date and midnight January 1, 1970. If a string, dateVal is parsed according to the rules in the parse method. The dateVal argument can also be a VT_DATE value as returned from some ActiveX objects. year Required. The full year, for example, 1976 (and not 76). month Required. The month as an integer between 0 and 11 (January to December). date Required. The date as an integer between 1 and 31. hours Optional. Must be supplied if minutes is supplied. An integer from 0 to 23 (midnight to 11pm) that specifies the hour. minutes Optional. Must be supplied if seconds is supplied. An integer from 0 to 59 that specifies the minutes. seconds Optional. Must be supplied if milliseconds is supplied. An integer from 0 to 59 that specifies the seconds. ms Optional. An integer from 0 to 999 that specifies the milliseconds.
Use the following syntax to call a Date object method:
A Date object contains a number representing a particular instant in time to within a millisecond. If the value of an argument is greater than its range or is a negative number, other stored values are modified accordingly. For example, if you specify 150 seconds, JScript redefines that number as two minutes and 30 seconds.
If the number is NaN, that indicates that the object does not represent a specific instant of time. If you pass no parameters to the Date object, it is initialized to the current time (UTC). A value must be given to the object before you can use it.
The range of dates that can be represented in a Date object is approximately 285,616 years from either side of January 1, 1970.
The Date object has two static methods that are called without creating a Date object: parse and UTC. An example of their syntax follows.
© 1997 by Microsoft Corporation. All rights reserved.
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