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2016-08-03 11:41:10
New Date ()
New Date (milliseconds)
New Date (datestring)
New Date (year, month)
New Date (year, month, day)
New Date (year, month, day, hours)
New Date (year, month, day, hours, minutes)
New Date (year, month, day, hours, minutes, seconds)
New Date (year, month, day, hours, minutes, seconds, microseconds)
The following is for 1.new date (), when there are no parameters, the current time Date object is created. 2.new Date (milliseconds), when the argument is a number, then this parameter is the timestamp, which is treated as milliseconds, creating a time-date object that is specified in milliseconds from January 1, 1970. 3.new Date (datestring), this parameter is a string, and this string must be able to use the Date.parse () conversion.
3.new Date (datestring), this parameter is a string, and this string must be able to use the Date.parse () conversion.
4. The following six constructors are precisely defined:
1). Year, is an integer, if it is 0-99, then add 1900 on this basis, and the others are returned as-is.
2). Month, is an integer with a range of 0-11.
3). Day, is an integer with a range of 1-31.
4). Hours, is an integer with a range of 0-23.
5). Minutes, is an integer with a range of 0-59.
6). Seconds, is an integer with a range of 0-59.
7). Microseconds is an integer with a range of 0-9999.
1 <HTML>2 <Head>3 <title>Time stamp converted to month day</title>4 <Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8" /> 5 </Head>6 <Body>7 </Body>8 </HTML>9 <Script>Ten window.onload=function(){ One A var Now=NewDate ();//Current system Time - varShijianchuo=now.gettime ();//gets the current time stamp - Alert ("time stamp:"+Shijianchuo); the varnowdate= NewDate (Shijianchuo);//Convert a timestamp to a Date object - varNowtime=nowdate. Format ("YYYY-MM-DD Hh:mm:ss");//formats the current system time, which is equivalent to converting the timestamp to date - Alert ("Current Time:"+nowtime); - + } - + A /* at Date formatting: - An extension to date that converts date to a string of the specified format - the year (Y) can use 1-4 placeholders, and the quarter (Q) can be used with 1-2 placeholders. - 1-2 placeholders can be used for months (m), days (d), hours (h), minutes (m), seconds (s). - milliseconds (S) can only be used with 1 placeholders (1-3 digits) - Example: in (New Date ()). Format ("Yyyy-mm-dd hh:mm:ss. S ") - (New Date ()). Format ("Yyyy-mm-dd hh:mm:ss. s milliseconds QQ quarter ") to */ + Date.prototype.Format= function(FMT) { - varo= { the "m+": This. GetMonth ()+ 1, //Month * "d+": This. GetDate (),//Day $ "H +": This. GetHours (),//whenPanax Notoginseng "m+": This. getminutes (),//points - "s+": This. getseconds (),//seconds the "q+": Math.floor (( This. GetMonth ()+ 3) / 3), //Quarterly + "S": This. Getmilliseconds ()//milliseconds A }; the if (/(y+)/. Test (FMT) FMT=Fmt.replace (regexp.$1, ( This. getFullYear ()+ ""). substr (4 -regexp.$1. length)); + for (varkincho) - if (NewRegExp ("(" +k+ ")"). Test (FMT) FMT=Fmt.replace (regexp.$1, (regexp.$1. Length== 1) ?
(O[k]): (("xx" +o[k]). substr ("" +O[k] )); $ returnFMT; $ } - </Script>
Related operations for date functions in JavaScript
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