My gym opens at 4:30-5 and is usually closed by 7. Which sucks because I work in construction and when it's busy, don't get home until 6:30-7 and theres no time to go after done showering/eating.
5:30 but no one really gets there until six. I show up around 6-6:15 because I hate it when there is only like two people in the gym lol. We work hard and we're called Cherry Lane Boxing & Youth Fitness. Our gym is obsessed with technique and everyone I've seen spar has pretty good defense. I always here "Keep your hands up!" everyday lol. Sorry I know you just asked what time it opens but I wanted to share this with you.
Mine has a fitness class at I think 12-1, then we open up again at 3 until 9ish. Those are the official hours but you can pretty much go train whenever you want because there's always someone there as two of the coaches do personal training during the day.
ours used to start about 5-30 for schoolboys and juniors and i think it was 6-30 for seniors.10 am on sunday mornings