| Fort Irwin Aitkenvale | Eastern Australia Time | -17:00 |
| Fort Irwin Aoulouz | Western European Time | -08:00 |
| Fort Irwin Opfikon | Central European Time | -09:00 |
| Fort Irwin Simpang Ampat | Malaysia Time | -15:00 |
| Fort Irwin Donji Vinjani | Central European Time | -09:00 |
| Fort Irwin Buenos Aires | Argentina Time | -04:00 |
| Fort Irwin Saint-Joseph-du-Lac | Eastern Time | -03:00 |
| Fort Irwin Muncy | Eastern Time | -03:00 |
| Fort Irwin Airport West | Eastern Australia Time | -17:00 |
| Fort Irwin Aougrout | Central European Time | -08:00 |
| Fort Irwin Ooltewah | Eastern Time | -03:00 |
| Fort Irwin Simpang Renggam | Malaysia Time | -15:00 |
| Fort Irwin Dongying | China Time | -15:00 |
| Fort Irwin Biebesheim am Rhein | Central European Time | -09:00 |
| Fort Irwin Saint-Hubert | Central European Time | -09:00 |
| Fort Irwin Mullaitivu | India Standard Time | -12:30 |
| Fort Irwin Air Itam | Malaysia Time | -15:00 |
| Fort Irwin Albisola Superiore | Central European Time | -09:00 |
| Fort Irwin Oosterbeek | Central European Time | -09:00 |
| Fort Irwin Sinaia | Eastern European Time | -10:00 |
| Fort Irwin Fawkner | Eastern Australia Time | -17:00 |
| Fort Irwin Biebrich | Central European Time | -09:00 |
| Fort Irwin Saint Ives | United Kingdom Time | -08:00 |
| Fort Irwin Mullanpur Dakha | India Standard Time | -12:30 |
| Fort Irwin Aigle | Central European Time | -09:00 |
| Fort Irwin Albert Park | Eastern Australia Time | -17:00 |
| Fort Irwin Onești | Eastern European Time | -10:00 |
| Fort Irwin Simrishamn N | Central European Time | -09:00 |
| Fort Irwin Faxe | Central European Time | -09:00 |
| Fort Irwin Bhilai | India Standard Time | -12:30 |
| Fort Irwin Saint James | Western Australia Time | -15:00 |
| Fort Irwin Metropolis | Central Time | -02:00 |
| Fort Irwin Aiea | Hawaii-Aleutian Time | 03:00 |
| Fort Irwin Antibes | Central European Time | -09:00 |
| Fort Irwin Onhaye | Central European Time | -09:00 |
| Fort Irwin Sungkai | Malaysia Time | -15:00 |
| Fort Irwin Farrer | Eastern Australia Time | -17:00 |
| Fort Irwin Bhilar | India Standard Time | -12:30 |
| Fort Irwin Saint James City | Eastern Time | -03:00 |
| Fort Irwin Mullins | Atlantic Time | -03:00 |
| Fort Irwin Bangana | India Standard Time | -12:30 |
| Fort Irwin Antigonish | Atlantic Time | -04:00 |
| Fort Irwin Ondara | Central European Time | -09:00 |
| Fort Irwin Sungai Besar | Malaysia Time | -15:00 |
| Fort Irwin Farthinghoe | United Kingdom Time | -08:00 |
| Fort Irwin Bhigwan | India Standard Time | -12:30 |
| Fort Irwin Saint-Jean-Cap-Ferrat | Central European Time | -09:00 |
| Fort Irwin Mullins | Eastern Time | -03:00 |
| Fort Irwin Bang Phli Yai | Indochina Time | -14:00 |
| Fort Irwin Antananarivo | East Africa Time | -10:00 |