Convert GMT to IST India Standard Time using javascript

Question

I have a date format is GMT or UTC.

var mydate  = '2020-01-14T17:43:37.000Z'

I want to convert this date in IST format so according to this date the output I need in this format.

var date = '2020-Jan-15 12:45'

Answer 1

You can specify an IANA time zone identifier in the options passed to toLocaleString. The identifier for India is Asia/Kolkata.

var s = new Date('2020-01-14T17:43:37.000Z').toLocaleString(undefined, {timeZone: 'Asia/Kolkata'});

The input is in UTC, thus this will convert to the appropriate time zone (as specified by the Z at the end).