FindSystemTimeZoneByID in TimeZone

I want to know whether "FindSystemTimeZoneByID" will check the client system timezone or will it be checking the server system time开发者_运维问答zone where the application has been hosted ?

The servers' timezone. You'll probably have to look into some Javascript to get the clients timezone: Check out the Date.getTimezoneOffset() method, it may be what you're looking for. And there's even a few suggestions here on SO to solve your problem. :)

It will only check the server's system.