How to detect the TIME ZONE of a hosting server by VBSCRIPT

[asuknow]

the time zone in client side is constant,
For example: GMT -4
But I may change the hosting server later,
and the hosting server may be in a diffferent Time Zone
from the first hosting server.

If the client Time Zone is GMT -4
and the Time Zone of the hosting server may vary,
how can I use VBscript to determine in which time zone
the hosting server is?

Do I need to use Javascript to determine time zone
of a hosting server?

Thanks for any help!