Alpari backtesting and GMT question

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I have been backtesting my EA with a GMT shift of +2 as Alpari is currently GMT+2

In the winter they will change to GMT+1.

Would I need to change the GMT shift to +1 then, or keep it as it is?

I am confused as to if the results when backtesting during GMT+1 time would be the same as testing now with a GMT+2 or if the GMT shift should always be kept to +2.

 

G

Assuming your EA is centred on particular GMT hour/s, either backtest in 6 month chunks (i.e. 'clocks winter' or 'clocks summer')

Or..

Have your EA derive the correct offset for time-of-year when backtesting :)

-BB-

 

I spoke with Alpari Uk (server is CET time) and they stated CET time is the same all year round.

The EA trades at a certain time.

Say for backtesting the time was 2am, then the trade time will always be 2am CET, winter or summer.

From this I assumed it was okay to backtest yearly rather than in chunks, aslong as the EA stays on 2am CET when traded live.

 

> CET time is the same all year round

Depends what you mean by 'same', see https://en.wikipedia.org/wiki/Central_European_Time

Maybe they didn't quite get what you meant - as Alpari UK is indeed 'CET all year' but CET does clock-change relative to GMT

So again, if your strategy is relative to GMT (as many are), you will need to test in chunks or do some code...

-BB-

 

My backtests give best results at 2am Alpari server time (CET).

Therefore whether it be summer/winter I believe that the setting should remain at 2am.

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