Units not labeled, no way to change day start time

The y axis is unlabeled! What is 120 units, equal? Minutes? Id assume so, but have no idea.

The major issue, though, is there is no way to change when a day starts or ends. I, like many millions of people, am on a third shift schedule, so my days dont run midnight-midnight, they run 4PM-7AM. So if Ive been super low on phone usage today, it still might show sky high usage from this morning before i went to sleep. Likewise, if the clock just rolled over at midnight, it will show zero usage even though I mightve been using my phone non-stop for hours up to that point.

Bethers1984 about SPACE - Break phone addiction, v2.5.1.1