I use MT from Alpari but timeframe does not coincide with mine which is GMT+3 summer time (like yours). Which one do you use so that I could use as well?

There is a warning on the SB Data Download page that your local time should match the the data server GMT time of +2 to avoid errors.
Bill

Hi Bill,
It's no true.
To make a reliable backtest you have to use data from your own time zone. (Not mine GMT+2.) That is why I recommend that someone has to use exporting data from MT. If you do so, the data should match your time zone.

I'm from Bulgaria and my time zone is GMT+2 (currently GMT+3 summer time). The data I upload on the website are from my broker with Bulgarian time zone.

You can read more about the Date and Time used in MT: http://book.mql4.com/functions/datetime

There is a MT Custom Indicator that shows the times here: http://codebase.mql4.com/3233

There is a warning on the SB Data Download page that your local time should math the the data server GMT time of +2 to avoid errors.  My question is why does the local time make any difference in backtesting since the broker's server could be far removed from his actual business address.  My broker's address is on the US east coast but his server is in the GMT + 2 timezone.

From the SB Data Checks, it looks like my broker's MetaTrader data has quite a few gaps and errors. I wonder if I wouldn't be better off with the SB's data.  Any comments will be appreciated.

Bill