| Niger Bosnia and Herzegovina | Central European Time | 00:00 |
| Niger Costa Rica | Central Time | 07:00 |
| Niger Croatia | Central European Time | 00:00 |
| Niger New Zealand | New Zealand Time | -12:00 |
| Niger Lebanon | Eastern European Time | -01:00 |
| Niger Puerto Rico | Argentina Time | 04:00 |
| Niger Liberia | Greenwich Mean Time | 01:00 |
| Niger Uruguay | Uruguay Time | 04:00 |
| Niger Panama | Central Time | 07:00 |
| Niger Mauritania | Greenwich Mean Time | 01:00 |
| Niger Congo | West Africa Time | 00:00 |
| Niger Albania | Central European Time | 00:00 |
| Niger Armenia | Armenia Time | -03:00 |
| Niger Lithuania | Eastern European Time | -01:00 |
| Niger Jamaica | Eastern Time | 06:00 |
| Niger Kuwait | Arabian Time | -02:00 |
| Niger Latvia | Eastern European Time | -01:00 |
| Niger Namibia | Central Africa Time | -01:00 |
| Niger Botswana | Central Africa Time | -01:00 |
| Niger Slovenia | Central European Time | 00:00 |
| Niger Lesotho | South Africa Standard Time | -01:00 |
| Niger The Gambia | Eastern Australia Time | -10:00 |
| Niger Guinea-Bissau | Greenwich Mean Time | 01:00 |
| Niger Gabon | West Africa Time | 00:00 |
| Niger Swaziland | South Africa Standard Time | -01:00 |
| Niger Mauritius | Mauritius Time | -03:00 |
| Niger Estonia | Eastern European Time | -01:00 |
| Niger Timor-Leste | East Timor Time | -08:00 |
| Niger Equatorial Guinea | West Africa Time | 00:00 |
| Niger Fiji | Fiji Time | -12:00 |
| Niger Qatar | Arabian Time | -02:00 |
| Niger Reunion | Reunion Time | -03:00 |
| Niger Comoros | East Africa Time | -02:00 |
| Niger Guyana | Guyana Time | 05:00 |
| Niger Djibouti | East Africa Time | -02:00 |
| Niger Bahrain | Arabian Time | -02:00 |
| Niger Bhutan | Bhutan Time | -05:00 |
| Niger Solomon Islands | Solomon Islands Time | -10:00 |
| Niger Cape Verde | Cape Verde Time | 02:00 |
| Niger Luxembourg | Central European Time | 00:00 |
| Niger Suriname | Suriname Time | 04:00 |
| Niger Guadeloupe | Atlantic Time | 05:00 |
| Niger Martinique | Atlantic Time | 05:00 |
| Niger Brunei | Brunei Darussalam Time | -07:00 |
| Niger Belize | Central Time | 07:00 |
| Niger The Bahamas | Eastern Time | 06:00 |
| Niger Barbados | Atlantic Time | 05:00 |
| Niger French Polynesia | Tahiti Time | 11:00 |
| Niger French Guiana | French Guiana Time | 04:00 |
| Niger Samoa | Apia Time | -12:00 |