Who invented hours?

Related questions

1. Is there 24 hours in a day?
2. What is GMT time now in Singapore?
3. Is Singapore bigger than Hong Kong?
4. Does Singapore change time?
5. Do HONG KONG change their clocks?
6. Do the clocks go back in Hong Kong?
7. How many time zones does Hong Kong have?
8. Who invented 24 hour time?
9. How do you tell 24 hour time?
10. Is Hong Kong safe at night?

Tags

1. #counting
2. #seconds
3. #number
4. #their
5. #babylonians
6. #mathematics
7. #system
8. #astronomy
9. #early
10. #minutes
11. #using
12. #division
13. #minute
14. #sumerians
15. #sexagesimal
16. #comes
17. #derived