| * = previous day (according to UTC Time) | ||||
| UTC (Zulu Time) | PACIFIC | MOUNTAIN | CENTRAL | EASTERN |
| STANDARD | STANDARD | STANDARD | STANDARD | |
| 0000 (Midnight) | 4 pm * | 5 pm * | 6 pm * | 7 pm * |
| 0100 | 5 pm * | 6 pm * | 7 pm * | 8 pm * |
| 0200 | 6 pm * | 7 pm * | 8 pm * | 9 pm * |
| 0300 | 7 pm * | 8 pm * | 9 pm * | 10 pm * |
| 0400 | 8 pm * | 9 pm * | 10 pm * | 11 pm * |
| 0500 | 9 pm * | 10 pm * | 11 pm * | 12 mid |
| 0600 | 10 pm * | 11 pm * | 12 mid | 1 am |
| 0700 | 11 pm * | 12 mid | 1 am | 2 am |
| 0800 | 12 mid | 1 am | 2 am | 3 am |
| 0900 | 1 am | 2 am | 3 am | 4 am |
| 1000 | 2 am | 3 am | 4 am | 5 am |
| 1100 | 3 am | 4 am | 5 am | 6 am |
| 1200 | 4 am | 5 am | 6 am | 7 am |
| 1300 | 5 am | 6 am | 7 am | 8 am |
| 1400 | 6 am | 7 am | 8 am | 9 am |
| 1500 | 7 am | 8 am | 9 am | 10 am |
| 1600 | 8 am | 9 am | 10 am | 11 am |
| 1700 | 9 am | 10 am | 11 am | 12 noon |
| 1800 | 10 am | 11 am | 12 noon | 1 pm |
| 1900 | 11 am | 12 noon | 1 pm | 2 pm |
| 2000 | 12 noon | 1 pm | 2 pm | 3 pm |
| 2100 | 1 pm | 2 pm | 3 pm | 4 pm |
| 2200 | 2 pm | 3 pm | 4 pm | 5 pm |
| 2300 | 3 pm | 4 pm | 5 pm | 6 pm |
Last Updated on 12/25/98
By Greg S. Johnson
