Another point of consideration is the opening hours for BJ's gas pumps. Unlike traditional gas stations that might be open much later at night or sometimes 24 hours, BJ's stations close pretty early. On the weekdays (Monday to Friday) and Saturdays, BJ's gas pumps are open from 6:30 am to 9:00 pm. As for Sunday, they're closed earlier, probably for maintenance work, between 6:30 am to 7:00 pm.