If you mean the broker server should be GMT+3. my VPS is located in London

"That’s right: when trading opens on 12 June 2016, our MT4’s charts will be on GMT +3 (instead of GMT +0) so our MT4 charts will contain only five daily candles per week.
Note: DST will be observed, our MT4 will display GMT +3 charts in summer time and GMT +2 charts when DST ends."