| Irvine Bahrs Scrub | Eastern Australia Time | -17:00 |
| Irvine Aarhus | Central European Time | -09:00 |
| Irvine Baichanalli | India Standard Time | -12:30 |
| Irvine Aarppookkara | India Standard Time | -12:30 |
| Irvine Baidani | India Standard Time | -12:30 |
| Irvine Abanilla | Central European Time | -09:00 |
| Irvine Baie-D'Urfe | Eastern Time | -03:00 |
| Irvine Aberlady | United Kingdom Time | -08:00 |
| Irvine Arossim | India Standard Time | -12:30 |
| Irvine Abisko | Central European Time | -09:00 |
| Irvine Arpora | India Standard Time | -12:30 |
| Irvine Abingdon | Eastern Time | -03:00 |
| Irvine Arklow | Ireland Time | -08:00 |
| Irvine Abington | Eastern Time | -03:00 |
| Irvine Arkula | India Standard Time | -12:30 |
| Irvine Aberdeen | Central Time | -02:00 |
| Irvine Arlesheim | Central European Time | -09:00 |
| Irvine Abeibara | Greenwich Mean Time | -07:00 |
| Irvine Armstrong | Pacific Time | 00:00 |
| Irvine Abbotsford | Eastern Australia Time | -17:00 |
| Irvine Arncliffe | Eastern Australia Time | -17:00 |
| Irvine Arnedo | Central European Time | -09:00 |
| Irvine Al Aaroui | Western European Time | -08:00 |
| Irvine Akköy | Turkey Time | -10:00 |
| Irvine Akrotiri | Eastern European Time | -10:00 |
| Irvine Al Hofuf | Arabian Time | -10:00 |
| Irvine Ardross | Western Australia Time | -15:00 |
| Irvine Ardsley | Eastern Time | -03:00 |
| Irvine Åre | Central European Time | -09:00 |
| Irvine Arden | Eastern Time | -03:00 |
| Irvine Arcugnano | Central European Time | -09:00 |
| Irvine Al Mudayq | Gulf Standard Time | -11:00 |
| Irvine Ariana | Central European Time | -08:00 |
| Irvine Argenbühl | Central European Time | -09:00 |
| Irvine Argent-sur-Sauldre | Central European Time | -09:00 |
| Irvine Al Jaradiyah | Arabian Time | -10:00 |
| Irvine Al Jaghbub | Eastern European Time | -09:00 |
| Irvine Al-Mamurah | Central European Time | -08:00 |