Alter what screen time considers a day?

Topic pretty much describes it. I don’t have any app or screen time limits set but sometimes look at my usage. However I frequently use my phone after midnight. Looking at it today I have been busy with work and primarily used messages, phone, outlook and my business page for instagram. But there is 2 hours of TikTok usage showing in today. But that was actually last night/ this morning. Up late not able to sleep.

Is there a way to have the cutoff for what screen time considers a days use? I would make 3am the cutoff. It’s no uncommon that I am up and using my phone after midnight. But extremely rare to use it after 3am.

just seems like it would be more accurate data if you count a “day” as phone use in a full wake/sleep cycle.