| Niger São Tomé and Príncipe | Greenwich Mean Time | 01:00 |
| Niger Saint Lucia | Atlantic Time | 05:00 |
| Niger Mayotte | East Africa Time | -02:00 |
| Niger U.S. Virgin Islands | Atlantic Time | 05:00 |
| Niger Saint Vincent and the Grenadines | Atlantic Time | 05:00 |
| Niger Seychelles | Pacific Time | 09:00 |
| Niger Antigua and Barbuda | Newfoundland Time | 04:30 |
| Niger Andorra | Central European Time | 00:00 |
| Niger Dominica | Atlantic Time | 05:00 |
| Niger Aruba | Atlantic Time | 05:00 |
| Niger Marshall Islands | Marshall Islands Time | -11:00 |
| Niger Bermuda | Eastern Time | 06:00 |
| Niger American Samoa | Samoa Time | 12:00 |
| Niger Greenland | West Greenland Time | 04:00 |
| Niger Northern Mariana Islands | Chamorro Standard Time | -09:00 |
| Niger Saint Kitts and Nevis | Atlantic Time | 05:00 |
| Niger Faroe Islands | Western European Time | 01:00 |
| Niger Cayman Islands | Malaysia Time | -07:00 |
| Niger Monaco | Central European Time | 00:00 |
| Niger Gibraltar | Central European Time | 00:00 |
| Niger Montserrat | United Kingdom Time | 01:00 |
| Niger Saint Helena | Eastern Time | 06:00 |
| Niger Saint Pierre and Miquelon | Reunion Time | -03:00 |
| Niger Falkland Islands (Islas Malvinas) | United Kingdom Time | 01:00 |
| Niger Norfolk Island | Eastern Time | 06:00 |