Convert UTC date time to local date time

Question

From the server I get a datetime variable in this format: 6/29/2011 4:52:48 PM and it is in UTC time. I want to convert it to the current user’s browser time us

Answer 1

Using YYYY-MM-DD hh:mm:ss format :

var date = new Date('2011-06-29T16:52:48+00:00');
date.toString() // "Wed Jun 29 2011 09:52:48 GMT-0700 (PDT)"

For converting from the YYYY-MM-DD hh:mm:ss format, make sure your date follow the ISO 8601 format.

Year: 
    YYYY (eg 1997)    
Year and month: 
    YYYY-MM (eg 1997-07)
Complete date: 
    YYYY-MM-DD (eg 1997-07-16)
Complete date plus hours and minutes:
    YYYY-MM-DDThh:mmTZD (eg 1997-07-16T19:20+01:00)    
Complete date plus   hours, minutes and seconds:
    YYYY-MM-DDThh:mm:ssTZD (eg 1997-07-16T19:20:30+01:00)    
Complete date plus hours, minutes, seconds and a decimal fraction of a second
    YYYY-MM-DDThh:mm:ss.sTZD (eg 1997-07-16T19:20:30.45+01:00) where:

YYYY = four-digit year
MM   = two-digit month (01=January, etc.)
DD   = two-digit day of month (01 through 31)
hh   = two digits of hour (00 through 23) (am/pm NOT allowed)
mm   = two digits of minute (00 through 59)
ss   = two digits of second (00 through 59)
s    = one or more digits representing a decimal fraction of a second
TZD  = time zone designator (Z or +hh:mm or -hh:mm)

Important things to note

1. You must separate the date and the time by a T, a space will not work in some browsers
2. You must set the timezone using this format +hh:mm, using a string for a timezone (ex. : 'UTC') will not work in many browsers. +hh:mm represent the offset from the UTC timezone.