Live casinos usually are the busiest at night hours up until midnight. Usually because this is their unwinding hours. Is it the same for online casinos? Does the time of day affect your gambling behaviors?
I can tell you from my personal experience that online poker rooms fill up during off-work hours. So, in that sense, they're not much different from live poker rooms. I assume the same thing happens with casino games. The fact that you can bet from your phone, I believe, only has a marginal effect—if any—on the volume of play in online casinos.
And personally, there's no way I'd start betting during the day, even if I had free time. For me, betting needs to be done in the right environment.