I am trying to get the user's timezone time. not the time set by the user locally. because that will cause many problems in my app.

I tried:-

    var date = new Date()
    var offsetInMin = date.getTimezoneOffset()

But it just shows the difference between the local time zone and the UTC.

Is there a way to get the timezone's(for me Kolkata) time rather than the local time of the device?

I found some APIs but it would be better to do it without APIs..