I checked all four time frames because that is what I see.
There are certain triggers that tell a hen when to release a yolk to start her internal egg making factory to put an egg together. It takes around 25 hours from when the yolk is released until the egg is laid. Can be more, can be less, but around 25 hours.
One trigger is light. This should be daylight hours but if your coop is lit up at night, either by your lights or maybe by outside security or street lights, that could mess them up. Another one is when they lay an egg. If a hen is laying an egg the next day the yolk is generally released to start that next egg a few minutes after that day's egg is laid if other triggers agree. If she is not laying an egg the next day then this trigger doesn't work. Somehow they know when it will soon get dark so they don't release a yolk. I'm sure there are other triggers but I don't know what they are. The net result is that more eggs are laid in the morning than in the afternoon.
I've seen hens on the nest to lay an egg at bedtime. I had a hen (my only green egg layer at the time so that made it easy) that laid an egg by 9:00 every day for 6 or 7 days straight, then skipped a day. If her egg wasn't there by 9:00 AM she wasn't going to lay that day. I've had hens that laid their egg about an hour to an hour and a half later each day until she was too late to lay it in daylight so she's skip a day and start that cycle again in the morning. I never worked out a specific pattern for most of them, they laid whenever they laid.