JS time operation

var mydate = new Date ();

Mydate.getyear (); Get Current year (2-bit)

Mydate.getfullyear (); Get the full year (4-bit, 1970-????)

Mydate.getmonth (); Get the current month (0-11, 0 for January) (add 1)

Mydate.getdate (); Get current day (1-31)

Mydate.getday (); Get Current week x (0-6, 0 for Sunday)

Mydate.gettime (); Gets the current time (the number of milliseconds since 1970.1.1)

Mydate.gethours (); Get current number of hours (0-23)

Mydate.getminutes (); Gets the current number of minutes (0-59)

Mydate.getseconds (); Gets the current number of seconds (0-59)

Mydate.getmilliseconds (); Gets the current number of milliseconds (0-999)

Mydate.tolocaledatestring (); Get Current date

var mytime=mydate.tolocaletimestring (); Get current time

Mydate.tolocalestring (); Get Date and time

How to set the time:

Setyear ()       //Change year

How to convert time:

toGMTString () Turns the Date object's Day (a numeric value) into a GMT time string and returns a value similar to the following: Weds,14 May 10:02:02 GMT (exact format depends on the operating system running on the computer) toLocaleString () Turns the Date object's dates (a numeric value) into a string, using the specific date format that is configured on the computer on which UTC () uses date UTC (Year, month, day, time, minute, second), since January 1, 1997 00:00:00 ( The number of milliseconds since the time, minutes, and seconds are optional to return the date

1. Current system locale format (tolocaledatestring and tolocaletimestring)

Example:(new Date ()). toLocaleDateString () + "" + (new Date ()). toLocaleTimeString ()
Results: January 29, 2008 16:13:11

2. Ordinary strings (todatestring and toTimeString)

Example: (new Date ()). toDateString () + "" + (new Date ()). toTimeString ()
Results: Tue Jan 16:13:11 utc+0800

3. Greenwich Mean Time (togmtstring)

Example: (New Date ()). toGMTString ()
Results: Tue, Jan 08:13:11 UTC

4. Global Standard Time (toutcstring)

Example: (New Date ()). toUTCString ()
Results: Tue, Jan 08:13:11 UTC

5.Date Object String (toString)

Example: (New Date ()). ToString ()
Results: Tue Jan 16:13:11 utc+0800 2008

A few points to note:

1, get the date and year and set the date and year time, the very strange problem is that the month can not be set (strange comparison):

<script type= "Text/javascript" language= "javascript" >//d = new Date (); alert (d.tolocalestring ());

D.setdate (14);

Alert (d.tolocalestring ());

D.setyear (2007);

Alert (d.tolocalestring ());

</script>

2, when the year is best to use the getFullYear () method to do 3, due to the month, JS is starting from 0, so need to enter the month
Add 1 for line operation The following are some of the classic and often used examples of time, for everyone will be helpful: 1, will 2005-8
-5 converted to 2005-08-05 format

<script type= "Text/javascript" language= "JavaScript" >

//

var strdate = ' 2005-8-5 ';

Window.alert (Strdate.replace (/\b (\w) \b/g, ' 0$1 '));

</script>

2, get the interval days <script type= "Text/javascript" >//&amp;amp;lt;! --Alert ("Days Between Days:" + (new Date (' 2005/8/15 ')-new date (' 2003/9/18 '))/1000/60/60/24+ "Day")//</script>

3. Get interval time <script type= "Text/javascript" >//var d1=new Date ("2004/09/16 20:08:00");  var d2=new Date ("2004/09/16 10:18:03");  var d3=d1-d2;  var h=math.floor (d3/3600000);  var M=math.floor ((d3-h*3600000)/60000);  var s= (d3-h*3600000-m*60000)/1000;  Alert ("Difference" +h+ "hour" +m+ "minute" +s+ "seconds"); </script>

4. Get today's date <script type= "Text/javascript" language= "javascript" >//d = new Date ();  Alert (d.getfullyear () + "year" + (D.getmonth () +1) + "month" +d.getdate () + "Day"); </script>

6. Get the date of the first n days or the last n days Method 1: <script type= "Text/javascript" >//function showdate (n) {var uom = new Date (new date () -0+n*864  00000);  UoM = uom.getfullyear () + "-" + (Uom.getmonth () +1) + "-" + uom.getdate ();  return UOM; }

Window.alert ("Today is:" +showdate (0));  Window.alert ("Yesterday is:" +showdate (-1));  Window.alert ("Tomorrow is:" +showdate (1));  Window.alert ("10 days ago is:" +showdate (-10));  Window.alert ("5 days later is:" +showdate (5)); </script>

Method 2: <script type= "Text/javascript" >//function showdate (n) {var uom = new Date ();  Uom.setdate (Uom.getdate () +n);  UoM = uom.getfullyear () + "-" + (Uom.getmonth () +1) + "-" + uom.getdate ();  return UOM; }

Window.alert ("Today is:" +showdate (0));  Window.alert ("Yesterday is:" +showdate (-1));  Window.alert ("Tomorrow is:" +showdate (1));  Window.alert ("10 days ago is:" +showdate (-10));  Window.alert ("5 days later is:" +showdate (5)); </script>

method 3: <script type= "Text/javascript" Language= "Javascript" >//date.prototype.getdays=function () { var _newdate=new Date ();  _ Newdate.setmonth (_newdate.getmonth () +1);  _newdate.setdate (0);  $_days=_newdate.getdate ();  delete _newdate;  return $_days;  }  function showdate (n)  { var uom = new Date ();  uom.setdate (Uom.getdate () +n);  uom = UoM . getFullYear () + "-" + (Uom.getmonth () +1) + "-" + uom.getdate () + "\ n Week" + (' Day twos
3456 '. CharAt (Uom.getday ())) + "\ n this month" + Uom.getdays () + "Day";  return UoM;  }   window.alert ("Today is:" +showdate (0));  window.alert ("Yesterday is:" +showdate (-1));  window.alert ("Tomorrow is:" +showdate (1));  window.alert ("10 days ago is:" +showdate (-10));  window.alert ("5 days later is:" +showdate (5));  //</script>