Not that i’m an expert, but I like to enter when liquidity is best, which I find to be in the first 2 hours of the various equity market sessions. By that I mean first two hours after SPI (australia), ftse (london) or S@P (U.S.). The execption might be the Asian session where markets keep opening throughout the day, with the Hang Seng last, so I use the first 3-3.5 hours after SPI open.
I find times other than these to be thinner, and more prone to continuation and stop running than reversals. For example, I think you can get a lot of false moves on the Frankfurt session (the hour before London opens), and likewise pre-North American open. If a pattern hits D about half an hour after equites open that gives me an extra level of confidence as we are in full liquidity and a lot of weak stops have probably been tagged. Basically I just try to avoid entering into thin markets as you can be a sitting duck.
Apart from improving your odds, this approach breaks the day into 3 manageable sessions, meaning you don’t have to watch the screen all day. Use your directional filters to narrow down your search, then just scan for patterns at the relevant times. It makes your trading more efficient.
The difficulty is when a pattern hits D outside your stated enty times. It’s hard to pass on a trade just becuase it hit out of hours, but in my experience it’s better to sit it out. This takes discipline, and you must control fear of missing out. I have found observing the entry time rules to be the hardest of all my rules to keep, but feel I have finally got it now. Just remember, you can’t be desperate for a trade, you should be indifferent. Your goal is simply to follow your plan, that should be the measure of your success. Focus on the process rather than the outcome. The results will look after themselves.
Lastly, I know other traders that couldn’t give a damn about time of day, and I’m sure my times are not difinitive, I just don’t like to enter into pre-market rubbish. Also, if you are position trading it’s impossible to avoid holding positions over fakeout times, but I think it still helps to give your trade the best start in life.
As for which pairs to trade, I would avoid entering pairs where both sides of the cross are asleep, for example eur/gbp or usd/cad during asia. Apart from anything, you will die of boredom.