It’s not an “official” thing and usually rolls over based on the business.
So let’s say one business opens at 10a and closes at 4a every day, they’ll say 10:00-28:00
But let’s say a different company opens at 3a and closes at 10p, they’ll say 03:00-22:00
You’ll notice that there isn’t an “official” reset of time, it’s only used when a business carries over past midnight till whenever they close the next day. You don’t really find anything going past about 4a though.