| Irvine Wayzata | Central Time | -02:00 |
| Irvine Lady Lake | Eastern Time | -03:00 |
| Irvine Wayne | Eastern Time | -03:00 |
| Irvine Whitefish | Mountain Time | -01:00 |
| Irvine Weaverville | Pacific Time | 00:00 |
| Irvine Ladysmith | Pacific Time | 00:00 |
| Irvine Webbers Falls | Central Time | -02:00 |
| Irvine Whiteman Air Force Base | Central Time | -02:00 |
| Irvine Webster | Central Time | -02:00 |
| Irvine Whitesboro | Eastern Time | -03:00 |
| Irvine Woodinville | Pacific Time | 00:00 |
| Irvine Whiteville | Eastern Time | -03:00 |
| Irvine Woodend | Eastern Australia Time | -17:00 |
| Irvine Whitewater | Central Time | -02:00 |
| Irvine Woodfin | Eastern Time | -03:00 |
| Irvine Yeniçiftlik | Turkey Time | -10:00 |
| Irvine Woodford | Eastern Australia Time | -17:00 |
| Irvine Yenifoça | Turkey Time | -10:00 |
| Irvine Wrightsville | Eastern Time | -03:00 |
| Irvine Yenda | Eastern Australia Time | -17:00 |
| Irvine Wrightsville Beach | Eastern Time | -03:00 |
| Irvine Whitby | United Kingdom Time | -08:00 |
| Irvine Woy Woy | Eastern Australia Time | -17:00 |
| Irvine Whitby | Eastern Time | -03:00 |
| Irvine Woods Cross | Mountain Time | -01:00 |
| Irvine Whitchurch | United Kingdom Time | -08:00 |
| Irvine Worb | Central European Time | -09:00 |
| Irvine Wheaton-Glenmont | Eastern Time | -03:00 |
| Irvine Woody Point | Eastern Australia Time | -17:00 |
| Irvine Whalley | United Kingdom Time | -08:00 |
| Irvine Woolloongabba | Eastern Australia Time | -17:00 |
| Irvine Whanganui | New Zealand Time | -19:00 |
| Irvine Workum | Central European Time | -09:00 |
| Irvine Wheatley | Central Time | -02:00 |
| Irvine Worrigee | Eastern Australia Time | -17:00 |
| Irvine Wetzikon | Central European Time | -09:00 |
| Irvine Wörrstadt | Central European Time | -09:00 |
| Irvine Wetherill Park | Eastern Australia Time | -17:00 |
| Irvine Umpqua | Pacific Time | 00:00 |
| Irvine Weston Subedge | United Kingdom Time | -08:00 |
| Irvine Unawatuna | India Standard Time | -12:30 |
| Irvine Wexford | Ireland Time | -08:00 |
| Irvine Underwood | Eastern Australia Time | -17:00 |
| Irvine Wexford | Eastern Time | -03:00 |
| Irvine Union Gap | Pacific Time | 00:00 |
| Irvine Yoxford | United Kingdom Time | -08:00 |
| Irvine Warnsveld | Central European Time | -09:00 |
| Irvine Ypres | Central European Time | -09:00 |
| Irvine Warners Bay | Eastern Australia Time | -17:00 |
| Irvine Yoshinogari | Japan Time | -16:00 |