Get GMT offset automatically

double ServerGmtOffsetHours=(TimeCurrent()-TimeGMT())/3600;

double ServerGmtOffsetHours=(TimeCurrent()-TimeGMT() +1800 )/3600;

I figured out i could do it like this, but can someone else test this if it should be working in all Timezones.

int GetTimeZone()
  {
   int in_ho=TimeHour(TimeCurrent());
   int st[4];
   int GMT = TimeHour(TimeGMT()) & 0xFFFF;
   int res = in_ho - GMT;
   if(res<0){in_ho+=24;}
   return(in_ho-GMT);
  }
  

 This will return the GMT Offset, it does that correctly on my PC using MetaQuotes-Demo, but i wanna be sure if it will be cool in all timezones...

Definitely it is not! You forget to consider that your pc clock might be wrong by a couple of minutes and that TimeCurrent() due to the latency caused by the internet is always a bit behind the correct time!

The int-cast - if I am right - always returns the lowest integer number not the nearest! WHRoeder's solution covers all that and its a lot simpler!

If you need India's fractions and you are sure the worst inaccuracy of both clocks is less than 7 minutes you can change his formula to :

double ServerGmtOffsetHours=(TimeCurrent()-TimeGMT() + 900 )/1800;