| Fort Irwin Antigonish | Atlantic Time | -04:00 |
| Fort Irwin Much Marcle | United Kingdom Time | -08:00 |
| Fort Irwin Antananarivo | East Africa Time | -10:00 |
| Fort Irwin Muang | Indochina Time | -14:00 |
| Fort Irwin Bahariya Oasis | Eastern European Time | -09:00 |
| Fort Irwin Merritt Island | Eastern Time | -03:00 |
| Fort Irwin Baga | India Standard Time | -12:30 |
| Fort Irwin Mersch | Central European Time | -09:00 |
| Fort Irwin Bagà | Central European Time | -09:00 |
| Fort Irwin Merrylands | Eastern Australia Time | -17:00 |
| Fort Irwin Badolato Marina | Central European Time | -09:00 |
| Fort Irwin Mersin | Turkey Time | -10:00 |
| Fort Irwin Appenzell District | Central European Time | -09:00 |
| Fort Irwin Mermaid Beach | Eastern Australia Time | -17:00 |
| Fort Irwin Apple Springs | Central Time | -02:00 |
| Fort Irwin Mermaid Waters | Eastern Australia Time | -17:00 |
| Fort Irwin Applecross | Western Australia Time | -15:00 |
| Fort Irwin Mering | Central European Time | -09:00 |
| Fort Irwin Apollo Beach | Eastern Time | -03:00 |
| Fort Irwin Merkez Mahallesi | Turkey Time | -10:00 |
| Fort Irwin Badamanavarthekaval | India Standard Time | -12:30 |
| Fort Irwin Meridian charter Township | Eastern Time | -03:00 |
| Fort Irwin Baden bei Wien | Central European Time | -09:00 |
| Fort Irwin Meridian charter Township | Eastern Time | -03:00 |
| Fort Irwin Badia Polesine | Central European Time | -09:00 |
| Fort Irwin Merewether | Eastern Australia Time | -17:00 |
| Fort Irwin Badia Tedalda | Central European Time | -09:00 |
| Fort Irwin Meredith | Eastern Time | -03:00 |
| Fort Irwin Aoulouz | Western European Time | -08:00 |
| Fort Irwin Menglembu | Malaysia Time | -15:00 |
| Fort Irwin Aougrout | Central European Time | -08:00 |
| Fort Irwin Menzingen | Central European Time | -09:00 |
| Fort Irwin Anzola dell'Emilia | Central European Time | -09:00 |
| Fort Irwin Ao Nang | Indochina Time | -14:00 |
| Fort Irwin Aoba Ward | Japan Time | -16:00 |
| Fort Irwin Aoi Ward | Japan Time | -16:00 |
| Fort Irwin Anzegem | Central European Time | -09:00 |
| Fort Irwin Anzegem | Central European Time | -09:00 |