NYSE hour open is when a lot of movement occurs. I've learned to focus on those times. Europe and asia hour one are good too, and the time between the markets is low liquidity and can often move a lot, but sitting down 9:30am ET and watching for the few hours after that are where you're likely to find some big moves.
You can see in my chart a couple big BTC pivots in those areas (purple)
You can see in my chart a couple big BTC pivots in those areas (purple)