Most Aldi stores are open from 9 a.m. to 8 p.m. every day except for Tuesday and Thursday, when they open at 8:30 a.m. You can count on Aldi being open every day of the year besides Thanksgiving, Christmas Day, New Year's Day, and Easter, but if you want to avoid crowded aisles and sorting through picked-over items, consider visiting the store midweek.