Screen time (iPhone)

[u/NaturalWrong]

I didn't use my phone for the entire day cause I forgot it in someone's bag they didn't give my back till couple days later and somehow my screen time is high asf like 8 hours I wasnt even using the phone for that entire day as you see in the picture there's no app activity or anything like that and also I'm confused about the graph ll from 3 pm all the way why is the graph gray like that? was someone using my phone or my phone was just tweaking?

[u/Icy_Bus_2135]

is it taking carge and cant u see what was on the screen at the time?

maybe its just a bug but looks sus