| Fort Irwin Wohratal | Central European Time | -09:00 |
| Fort Irwin West Park | Eastern Time | -03:00 |
| Fort Irwin Wolfschlugen | Central European Time | -09:00 |
| Fort Irwin West Milwaukee | Central Time | -02:00 |
| Fort Irwin Wolfville | Atlantic Time | -04:00 |
| Fort Irwin West Melbourne | Eastern Australia Time | -17:00 |
| Fort Irwin Wolkersdorf im Weinviertel | Central European Time | -09:00 |
| Fort Irwin West Mackay | Eastern Australia Time | -17:00 |
| Fort Irwin Zuidhorn | Central European Time | -09:00 |
| Fort Irwin West Perth | Western Australia Time | -15:00 |
| Fort Irwin Zuidoostbeemster | Central European Time | -09:00 |
| Fort Irwin West Point | Eastern Time | -03:00 |
| Fort Irwin Zugliano | Central European Time | -09:00 |
| Fort Irwin West Portsmouth | Eastern Time | -03:00 |
| Fort Irwin Zoutelande | Central European Time | -09:00 |
| Fort Irwin West Reading | Eastern Time | -03:00 |
| Fort Irwin Woodcroft | Central Australia Time | -16:30 |
| Fort Irwin West Richmond | Central Australia Time | -16:30 |
| Fort Irwin Voroneț | Eastern European Time | -10:00 |
| Fort Irwin West Runton | United Kingdom Time | -08:00 |
| Fort Irwin Windsor | Eastern Australia Time | -17:00 |
| Fort Irwin West Ryde | Eastern Australia Time | -17:00 |
| Fort Irwin Windsor | Eastern Australia Time | -17:00 |
| Fort Irwin Yeniçiftlik | Turkey Time | -10:00 |
| Fort Irwin Vosselaar | Central European Time | -09:00 |
| Fort Irwin Yenifoça | Turkey Time | -10:00 |
| Fort Irwin Vostochny District | Moscow Time | -10:00 |
| Fort Irwin Yenda | Eastern Australia Time | -17:00 |
| Fort Irwin Winseler | Central European Time | -09:00 |
| Fort Irwin West Chazy | Eastern Time | -03:00 |
| Fort Irwin Winnsboro | Central Time | -02:00 |
| Fort Irwin West Cape May | Eastern Time | -03:00 |
| Fort Irwin Wingham | United Kingdom Time | -08:00 |
| Fort Irwin West Bountiful | Mountain Time | -01:00 |
| Fort Irwin Windsor Locks | Eastern Time | -03:00 |
| Fort Irwin West Bradley | United Kingdom Time | -08:00 |
| Fort Irwin Wittenberg | Central European Time | -09:00 |
| Fort Irwin West Footscray | Eastern Australia Time | -17:00 |
| Fort Irwin Wivenhoe | United Kingdom Time | -08:00 |
| Fort Irwin West End | Central Time | -01:00 |
| Fort Irwin Winton | New Zealand Time | -19:00 |
| Fort Irwin West Columbia | Eastern Time | -03:00 |
| Fort Irwin Winterville | Eastern Time | -03:00 |
| Fort Irwin West End | Eastern Australia Time | -17:00 |
| Fort Irwin Wisconsin Dells | Central Time | -02:00 |
| Fort Irwin West Croydon | Central Australia Time | -16:30 |
| Fort Irwin Wirksworth | United Kingdom Time | -08:00 |
| Fort Irwin Villa Nueva | Argentina Time | -04:00 |
| Fort Irwin Wirsberg | Central European Time | -09:00 |
| Fort Irwin Villa Giardino | Argentina Time | -04:00 |