Why does usage time increase despite phone been on standby

[chillip]

As the title, I've always wondered this. Thanks

 

[Newtons Apple]

Sounds to me that even on standby the phone still “barks” it’s location to the towers.

 

[C DM]

As the title, I've always wondered this. Thanks

It would usually only increase a bit here and there if there's an app that might be finishing something up, or notifications that come in, or some other sync activity that might be going on.