| Fort Irwin California | Eastern Time | -03:00 |
| Fort Irwin West End | Central Time | -01:00 |
| Fort Irwin Bridgehampton | Eastern Time | -03:00 |
| Fort Irwin Breitbrunn am Chiemsee | Central European Time | -09:00 |
| Fort Irwin Sebastopol | Pacific Time | 00:00 |
| Fort Irwin Riyadh | Central European Time | -08:00 |
| Fort Irwin Pukalani | Hawaii-Aleutian Time | 03:00 |
| Fort Irwin Saint-Pierre-du-Mont | Central European Time | -09:00 |
| Fort Irwin Calimesa | Pacific Time | 00:00 |
| Fort Irwin West Monroe | Central Time | -02:00 |
| Fort Irwin Bhigwan | India Standard Time | -12:30 |
| Fort Irwin Bremgarten | Central European Time | -09:00 |
| Fort Irwin Seberang Jaya | Malaysia Time | -15:00 |
| Fort Irwin Riyadh Al Khabra | Arabian Time | -10:00 |
| Fort Irwin Pukekohe | New Zealand Time | -19:00 |
| Fort Irwin Saint-Pie | Eastern Time | -03:00 |
| Fort Irwin Caldes d'Estrac | Central European Time | -09:00 |
| Fort Irwin West Nyack | Eastern Time | -03:00 |
| Fort Irwin Bhimtal | India Standard Time | -12:30 |
| Fort Irwin Breña | Peru Time | -02:00 |
| Fort Irwin Seberang Perai | Malaysia Time | -15:00 |
| Fort Irwin Rivervale | Western Australia Time | -15:00 |
| Fort Irwin Puerto Viejo de Talamanca | Central Time | -01:00 |
| Fort Irwin Saint-Paul-lès-Dax | Central European Time | -09:00 |
| Fort Irwin Boularderie East | Atlantic Time | -04:00 |
| Fort Irwin West Park | Eastern Time | -03:00 |
| Fort Irwin Bhilai | India Standard Time | -12:30 |
| Fort Irwin Brent Park | United Kingdom Time | -08:00 |
| Fort Irwin Zuidhorn | Central European Time | -09:00 |
| Fort Irwin Riverview | Atlantic Time | -04:00 |
| Fort Irwin Puerto Vallarta | Central Time | -02:00 |
| Fort Irwin Saint-Tropez | Central European Time | -09:00 |
| Fort Irwin Boumalne Dades | Western European Time | -08:00 |
| Fort Irwin West Perth | Western Australia Time | -15:00 |
| Fort Irwin Bhilar | India Standard Time | -12:30 |
| Fort Irwin Briançon | Central European Time | -09:00 |
| Fort Irwin Zuidoostbeemster | Central European Time | -09:00 |
| Fort Irwin Riverwood | Eastern Australia Time | -17:00 |
| Fort Irwin Punchbowl | Eastern Australia Time | -17:00 |
| Fort Irwin Saint Vith | Central European Time | -09:00 |
| Fort Irwin Bougtob | Central European Time | -08:00 |
| Fort Irwin West Point | Eastern Time | -03:00 |
| Fort Irwin Bhatpachlana | India Standard Time | -12:30 |
| Fort Irwin Brick | Eastern Time | -03:00 |
| Fort Irwin Zugliano | Central European Time | -09:00 |
| Fort Irwin Rakovica | Central European Time | -09:00 |
| Fort Irwin Pune | India Standard Time | -12:30 |
| Fort Irwin Sainte-Hélène-de-Bagot | Eastern Time | -03:00 |
| Fort Irwin Bhalawani | India Standard Time | -12:30 |
| Fort Irwin West Portsmouth | Eastern Time | -03:00 |