I think the best trading time is the london session from London open -1 to NY open -1. In the NY session in the most cases the big boys manipulated the market to the other direction, so your good profit from the london session becomes a loss.
I think the NY session is not predictable, as the market is often turning and sometimes the market continues in the direction of the London session. The best trading system with the best indicators can not predict this. My conclusion, trendstrength, price action and timing is the key.
Timeframes on the chart:
London session 07.00 - 12.00 GMT
NY session 13.30 - 16.00 GMT
I think the NY session is not predictable, as the market is often turning and sometimes the market continues in the direction of the London session. The best trading system with the best indicators can not predict this. My conclusion, trendstrength, price action and timing is the key.
Timeframes on the chart:
London session 07.00 - 12.00 GMT
NY session 13.30 - 16.00 GMT