| Comoros São Tomé and Príncipe | Greenwich Mean Time | 03:00 |
| Comoros Saint Lucia | Atlantic Time | 07:00 |
| Comoros Mayotte | East Africa Time | 00:00 |
| Comoros U.S. Virgin Islands | Atlantic Time | 07:00 |
| Comoros Saint Vincent and the Grenadines | Atlantic Time | 07:00 |
| Comoros Seychelles | Pacific Time | 11:00 |
| Comoros Antigua and Barbuda | Newfoundland Time | 06:30 |
| Comoros Andorra | Central European Time | 02:00 |
| Comoros Dominica | Atlantic Time | 07:00 |
| Comoros Aruba | Atlantic Time | 07:00 |
| Comoros Marshall Islands | Marshall Islands Time | -09:00 |
| Comoros Bermuda | Eastern Time | 08:00 |
| Comoros American Samoa | Samoa Time | 14:00 |
| Comoros Greenland | West Greenland Time | 06:00 |
| Comoros Northern Mariana Islands | Chamorro Standard Time | -07:00 |
| Comoros Saint Kitts and Nevis | Atlantic Time | 07:00 |
| Comoros Faroe Islands | Western European Time | 03:00 |
| Comoros Cayman Islands | Malaysia Time | -05:00 |
| Comoros Monaco | Central European Time | 02:00 |
| Comoros Gibraltar | Central European Time | 02:00 |
| Comoros Montserrat | United Kingdom Time | 03:00 |
| Comoros Saint Helena | Eastern Time | 08:00 |
| Comoros Saint Pierre and Miquelon | Reunion Time | -01:00 |
| Comoros Falkland Islands (Islas Malvinas) | United Kingdom Time | 03:00 |
| Comoros Norfolk Island | Eastern Time | 08:00 |