Countries using 12-hour time
Eighteen (18) Countries use the 12-hour clock: Australia, Bangladesh, Canada, Colombia, Egypt, El Salvador, Honduras, India, Ireland, Jordan, Malaysia, Mexico, New Zealand, Nicaragua, Pakistan, Philippines, Saudi Arabia and U.S. (although the military uses the 24-hour clock).
Military Time Conversion
| Military Time | Standard Time |
|---|---|
| 0000 / 2400 | 12:00 AM / Midnight |
| 0100 | 1:00 AM |
| 0200 | 2:00 AM |
| 0300 | 3:00 AM |
Time Expressions
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Midnight Expression: Midnight is a part of the day that is ending, not the day that is beginning. When expressing times for “noon” and “midnight” it is best not to use numerals (12:00 a.m. and 12:00 p.m.).
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Saying 12 PM: The American Heritage Dictionary of the English Language states "By convention, 12 AM denotes midnight and 12 PM denotes noon. Because of the potential for confusion, it is advisable to use 12 noon and 12 midnight."
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Good Morning and Good Afternoon: Good morning is from 12 am to 12 pm. From 12pm to around 5pm we say good afternoon. From 5pm to 12pm it is good evening.