JavaScript getTimezoneOffset() for January 1, 1970

Question

I have the next case:

new Date().timezoneOffset() //returns -180. That\'s ok.

but

new Date(0).timezoneOffset() //returns -120.
         


        

Answer 1

That's the effect of Daylight Savings or "Summer" time.

If it were December right now, you would not have asked the question :)