FFXIV does not really have a 100% regularly maintenance schedule. Like how some games go "Every Xday at so-and-so time we do an hour of regular maintenance"? Yeah FFXIV doesn't have that.

That lodestone lists their ideal maintenance windows, should they need it. They do tend to favor Tuesday to coincide with the reset. There's been a lot these past few months because of the expac launch. But AFAIK, there haven't been any maintenances announced currently. It will appear on the lodestone once they do announce one.