| Fort Irwin Oromocto | Atlantic Time | -04:00 |
| Fort Irwin West Richmond | Central Australia Time | -16:30 |
| Fort Irwin Vilshofen an der Donau | Central European Time | -09:00 |
| Fort Irwin Las Juntas | Central Time | -02:00 |
| Fort Irwin Hubali-Dharwad | India Standard Time | -12:30 |
| Fort Irwin Mavivi | Central Africa Time | -09:00 |
| Fort Irwin Vilobí d'Onyar | Central European Time | -09:00 |
| Fort Irwin Crossville | Central Time | -02:00 |
| Fort Irwin Orono | Central Time | -02:00 |
| Fort Irwin West Runton | United Kingdom Time | -08:00 |
| Fort Irwin Vilseck | Central European Time | -09:00 |
| Fort Irwin Logan Central | Eastern Australia Time | -17:00 |
| Fort Irwin Karumathampatti | India Standard Time | -12:30 |
| Fort Irwin Naqoura | Eastern European Time | -10:00 |
| Fort Irwin Villaines-la-Juhel | Central European Time | -09:00 |
| Fort Irwin Crossways | United Kingdom Time | -08:00 |
| Fort Irwin Osborne Park | Western Australia Time | -15:00 |
| Fort Irwin West Ryde | Eastern Australia Time | -17:00 |
| Fort Irwin Uesslingen-Buch | Central European Time | -09:00 |
| Fort Irwin Loganholme | Eastern Australia Time | -17:00 |
| Fort Irwin Kartal | Turkey Time | -10:00 |
| Fort Irwin Narrabeen | Eastern Australia Time | -17:00 |
| Fort Irwin Villaga | Central European Time | -09:00 |
| Fort Irwin London | United Kingdom Time | -08:00 |
| Fort Irwin Osceola | Central Time | -02:00 |
| Fort Irwin West Park | Eastern Time | -03:00 |
| Fort Irwin Udupi | India Standard Time | -12:30 |
| Fort Irwin London | United Kingdom Time | -08:00 |
| Fort Irwin Kashigarh | India Standard Time | -12:30 |
| Fort Irwin Narragansett | Eastern Time | -03:00 |
| Fort Irwin Uccle | Central European Time | -09:00 |
| Fort Irwin London | United Kingdom Time | -08:00 |
| Fort Irwin Orthez | Central European Time | -09:00 |
| Fort Irwin West Perth | Western Australia Time | -15:00 |
| Fort Irwin Tyngsborough | Eastern Time | -03:00 |
| Fort Irwin London | United Kingdom Time | -08:00 |
| Fort Irwin Kasauli | India Standard Time | -12:30 |
| Fort Irwin Mont-Tremblant | Eastern Time | -03:00 |
| Fort Irwin Tylden | Eastern Australia Time | -17:00 |
| Fort Irwin London | United Kingdom Time | -08:00 |
| Fort Irwin Orvieto Scalo | Central European Time | -09:00 |
| Fort Irwin West Point | Eastern Time | -03:00 |
| Fort Irwin Zephyr | Eastern Time | -03:00 |
| Fort Irwin Londonderry | Eastern Time | -03:00 |
| Fort Irwin Karnak | Central Time | -02:00 |
| Fort Irwin Montague | Eastern Time | -03:00 |
| Fort Irwin Zephyrhills | Eastern Time | -03:00 |
| Fort Irwin Loleta | Pacific Time | 00:00 |
| Fort Irwin Orxeta | Central European Time | -09:00 |
| Fort Irwin West Portsmouth | Eastern Time | -03:00 |