| Fort Irwin Staré Město | Central European Time | -09:00 |
| Fort Irwin Canacona | India Standard Time | -12:30 |
| Fort Irwin Nottingham | Eastern Time | -03:00 |
| Fort Irwin Ban Tai | Indochina Time | -14:00 |
| Fort Irwin Nakagyo Ward | Japan Time | -16:00 |
| Fort Irwin Bhadalwadi | India Standard Time | -12:30 |
| Fort Irwin Maylands | Western Australia Time | -15:00 |
| Fort Irwin Tofield | Mountain Time | -01:00 |
| Fort Irwin Stari Grad | Central European Time | -09:00 |
| Fort Irwin Canada | Eastern Time | -03:00 |
| Fort Irwin Moka | Mauritius Time | -11:00 |
| Fort Irwin Balmain | Eastern Australia Time | -17:00 |
| Fort Irwin North Strathfield | Eastern Australia Time | -17:00 |
| Fort Irwin Besham City | Pakistan Time | -12:00 |
| Fort Irwin Mayfield | Central Time | -02:00 |
| Fort Irwin Nurpur | India Standard Time | -12:30 |
| Fort Irwin Starke | Eastern Time | -03:00 |
| Fort Irwin Canada Creek | Atlantic Time | -04:00 |
| Fort Irwin Mayotte | Eastern Time | -03:00 |
| Fort Irwin Ballsbridge | Ireland Time | -08:00 |
| Fort Irwin North Sydney | Eastern Australia Time | -17:00 |
| Fort Irwin Berry | Eastern Australia Time | -17:00 |
| Fort Irwin Mayville | Eastern Time | -03:00 |
| Fort Irwin Ñuñoa | Chile Time | -03:00 |
| Fort Irwin Schwentinental | Central European Time | -09:00 |
| Fort Irwin Canaveral | Colombia Time | -02:00 |
| Fort Irwin Mayfield | Eastern Australia Time | -17:00 |
| Fort Irwin Ballston Spa | Eastern Time | -03:00 |
| Fort Irwin North Syracuse | Eastern Time | -03:00 |
| Fort Irwin Berthoud | Mountain Time | -01:00 |
| Fort Irwin Mayfield | United Kingdom Time | -08:00 |
| Fort Irwin Nuremberg | Central European Time | -09:00 |
| Fort Irwin Scorzè | Central European Time | -09:00 |
| Fort Irwin Canandaigua | Eastern Time | -03:00 |
| Fort Irwin Mawgan | United Kingdom Time | -08:00 |
| Fort Irwin Ballydehob | Ireland Time | -08:00 |
| Fort Irwin North Melbourne | Eastern Australia Time | -17:00 |
| Fort Irwin Bethel | Eastern Time | -03:00 |
| Fort Irwin Mawson Lakes | Central Australia Time | -16:30 |
| Fort Irwin Parempuyre | Central European Time | -09:00 |
| Fort Irwin Scotland Island | Eastern Australia Time | -17:00 |
| Fort Irwin Changlun | Malaysia Time | -15:00 |
| Fort Irwin Maxey | United Kingdom Time | -08:00 |
| Fort Irwin Ballina | Eastern Australia Time | -17:00 |
| Fort Irwin North Liberty | Central Time | -02:00 |
| Fort Irwin Beverstedt | Central European Time | -09:00 |
| Fort Irwin Maude | Eastern Australia Time | -17:00 |
| Fort Irwin Nyack | Eastern Time | -03:00 |
| Fort Irwin Schuylerville | Eastern Time | -03:00 |
| Fort Irwin Chanos-Curson | Central European Time | -09:00 |