At the same time, I never play on Saturdays and Sundays, only on weekdays. In my opinion, Sundays are better for offline activities - for example, meeting with friends or visiting various exhibitions, film screenings or festivals.
For a second there I was going to preempt you, thinking you wanted to say Sunday was strictly for religious activities 🤔. Anyway, what one can't do on any day in this age and time would be by choice and not necessarily by restrictions even when we go visiting; except it's done offline.
Online casinos and bet shops have brought gambling nearer home and made accessibility a click away. As for me, there's no time of the day one can't place bets, unless one isn't in the right frame of mind. It's best not to gamble when one isn't well in their best concentration and focus.