| Ante meridiem is almost always abbreviated as am, and the term is spelled out only in the most formal contexts, such as laws and statutes. |
| Tell students that am is short for the Latin phrase ante meridiem, which means "before noon". |
| On great ancient sundials the shadow crossed the central line at noon, dramatically marking the shift from ante meridiem to post meridiem. |
| He merely wished to correct his mother on the telephone that Monday 10.25 ante meridiem and not Sunday 10.25 ante meridiem, or ante meridian time was the time she had misunderstood to pick him up. |
| The civil day begins at midnight, and reckons 12 hours ante meridiem, or before noon, and 12 hours post meridiem, or after noon. |
