I voted 'a month ago'. I can't remember exactly when though, but it's been between one and two months ago I guess.
Up to two months ago I regularly had a herbal infusion instead of tea proper. Sometimes when my stomach plays up (acid/gastritis) I avoid green tea, but usually I still have a cup of masala chai, which is mild on the stomach. When I'm out I also tend to drink at least one cup of tea, and mostly that tea is Starbucks's soy matcha latte. After all, that also contains some camellia sinensis
So although I regularly skip green tea, a day without any camellia sinensis is rare