In the U.S., we use a 12-hour clock.
Many other countries use a 24-hour clock.
In the U.S., each day has two (2) twelve (12) hour shifts.
- Midnight 12:00am
- 12:01am-11:59am (this is the morning)
- Noon 12:00pm
- 12:01pm-11:59pm (this includes the afternoon, evening, & night)
am (before noon) = morning
pm (after noon) = afternoon, evening, & night
Some of the countries that use a 12-hour clock:
Canada, Mexico, Costa Rica, Columbia, El Salvador, Honduras, Nicaragua, Egypt, Bangladesh, India, Jordan, Pakistan, Philippines, Malaysia, Saudi Arabia, Ireland, Australia, and New Zealand.