Does a new day start at midnight or 12 01?

Related questions

1. How long before takeoff do planes start boarding?
2. Is it 12 am tomorrow or today?
3. Should PM be capitalized on an invitation?
4. What does the +1 mean in flights?
5. Is it pm or am right now?
6. Is 12am a new day?
7. How do I know if my flight is AM or PM?
8. Is 10 am morning or night?
9. How do you write PM?
10. Does flight time include time difference?

Tags

1. #choose
2. #second
3. #after
4. #similarly
5. #first
6. #fraction
7. #whatever
8. #calendar
9. #system
10. #january
11. #begins
12. #begun
13. #therefore
14. #would
15. #nanosecond
16. #beginning
17. #suceeding
18. #counting
19. #midnight
20. #timekeeping