New to iPhone & IOS - Help 😭

[Deiota43]

Hello.
I just bought a new iPhone and I’m trying to understand the sscreen on time.
It’s a daily measure from 24/24h of charging cycles? Can I switch this? I’m asking because I I’m coming com Samsung and one ui has that option.
If I’m late at night till 4 am this time will count to my next SOT even though I charge it when I’m going to sleep after 4am?
Thanks

 

[MacCheetah3]

Check the iPhone battery health and usage

Learn how to check the health and usage of your iPhone battery so you can get the most out of it.

support.apple.com

About battery usage on your iPhone or iPad - Apple Support

Learn how to check the amount of battery used by each app on your iPhone or iPad.

support.apple.com

In a quick search, the following video has an okay explanation and examples:

 

[Deiota43]

Thanks a lot!
Cheers 👍