How can I check my mobile usage hours?

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Tags

1. #about
2. #hidden
3. #menus
4. #codes
5. #bring
6. #install
7. #available
8. #status
9. #doesn
10. #settings
11. #phone
12. #dialer
13. #which
14. #bottom
15. #android
16. #should
17. #scroll
18. #launcher
19. #feature
20. #those
21. #think