| Mauritania China | China Time | -08:00 |
| Mauritania India | India Standard Time | -05:30 |
| Mauritania United States | United Kingdom Time | 00:00 |
| Mauritania Brazil | Brasilia Time | 03:00 |
| Mauritania Pakistan | Pakistan Time | -05:00 |
| Mauritania Russia | Moscow Time | -03:00 |
| Mauritania Mexico | Central Time | 06:00 |
| Mauritania Philippines | Philippine Time | -08:00 |
| Mauritania Vietnam | Indochina Time | -07:00 |
| Mauritania Ethiopia | East Africa Time | -03:00 |
| Mauritania Germany | Central European Time | -01:00 |
| Mauritania Egypt | Eastern European Time | -02:00 |
| Mauritania Turkey | Turkey Time | -03:00 |
| Mauritania Thailand | Indochina Time | -07:00 |
| Mauritania France | Central European Time | -01:00 |
| Mauritania United Kingdom | United Kingdom Time | 00:00 |
| Mauritania Italy | Central European Time | -01:00 |
| Mauritania South Africa | South Africa Standard Time | -02:00 |
| Mauritania South Korea | Korean Time | -09:00 |
| Mauritania Spain | Central European Time | -01:00 |
| Mauritania Tanzania | East Africa Time | -03:00 |
| Mauritania Argentina | Argentina Time | 03:00 |
| Mauritania Kenya | East Africa Time | -03:00 |
| Mauritania Poland | Central European Time | -01:00 |
| Mauritania Sudan | Central Africa Time | -02:00 |
| Mauritania Algeria | Central European Time | -01:00 |
| Mauritania Morocco | Western European Time | -01:00 |
| Mauritania Canada | Eastern Time | 05:00 |
| Mauritania Uganda | East Africa Time | -03:00 |
| Mauritania Peru | Peru Time | 05:00 |
| Mauritania Iraq | Arabian Time | -03:00 |
| Mauritania Afghanistan | Afghanistan Time | -04:30 |
| Mauritania Nepal | Nepal Time | -05:45 |
| Mauritania Malaysia | Malaysia Time | -08:00 |
| Mauritania Uzbekistan | Uzbekistan Time | -05:00 |
| Mauritania Venezuela | Venezuela Time | 04:00 |
| Mauritania Ghana | Greenwich Mean Time | 00:00 |
| Mauritania Yemen | Arabian Time | -03:00 |
| Mauritania North Korea | Pyongyang Time | -09:00 |
| Mauritania Syria | Eastern European Time | -02:00 |
| Mauritania Mozambique | Central Africa Time | -02:00 |
| Mauritania Romania | Eastern European Time | -02:00 |
| Mauritania Australia | Eastern Australia Time | -11:00 |
| Mauritania Sri Lanka | India Standard Time | -05:30 |
| Mauritania Côte d'Ivoire | Greenwich Mean Time | 00:00 |
| Mauritania Cameroon | West Africa Time | -01:00 |
| Mauritania Chile | Philippine Time | -08:00 |
| Mauritania Netherlands | Central European Time | -01:00 |
| Mauritania Burkina Faso | Greenwich Mean Time | 00:00 |
| Mauritania Niger | West Africa Time | -01:00 |