Question: GMT+2 and GMT+3, which is the summer time(DST) in MT4/MT5?
GMT+3 is the summer time in MT4.
The time in MetaTrader4 trading platform cannot be changed, and the DST is following the time in New York exchange market.
Normally DST starts on 10 – 13th of March and ends on 1 – 3rd of November.
*There are some EAs to change the display time in MT4.
US and Europe’s (and other countries’) summer time changes affect directly to market hours.
You are recommended to stay updated with your broker for changes.
In case you are using EAs(Expert Advisers), you may also need to adjust the setting accordingly.