| Kirkwall Seri Manjung | Malaysia Time | -07:00 |
| Kirkwall Sennfeld | Central European Time | -01:00 |
| Kirkwall Seoul | Korean Time | -08:00 |
| Kirkwall Seoul | Korean Time | -08:00 |
| Kirkwall Sepang | Malaysia Time | -07:00 |
| Kirkwall Sepang | Malaysia Time | -07:00 |
| Kirkwall Serdang | Malaysia Time | -07:00 |
| Kirkwall Sequim | Pacific Time | 08:00 |
| Kirkwall Zephyr | Eastern Time | 05:00 |
| Kirkwall Zephyrhills | Eastern Time | 05:00 |
| Kirkwall Zandhoven | Central European Time | -01:00 |
| Kirkwall Zanzibar Town | East Africa Time | -02:00 |
| Kirkwall Waupaca | Central Time | 06:00 |
| Kirkwall Wattwil | Central European Time | -01:00 |
| Kirkwall Wauchope | Eastern Australia Time | -09:00 |
| Kirkwall Wavre | Central European Time | -01:00 |
| Kirkwall Waverley | Eastern Australia Time | -09:00 |
| Kirkwall Wayne | Eastern Time | 05:00 |
| Kirkwall Waynesville | Eastern Time | 05:00 |
| Kirkwall Wayville | Central Australia Time | -08:30 |
| Kirkwall Wayzata | Central Time | 06:00 |
| Kirkwall Weaverville | Pacific Time | 08:00 |
| Kirkwall Webbers Falls | Central Time | 06:00 |
| Kirkwall Webster | Central Time | 06:00 |
| Kirkwall Wasserburg am Inn | Central European Time | -01:00 |
| Kirkwall Washington | Eastern Time | 05:00 |
| Kirkwall Washington | Eastern Time | 05:00 |
| Kirkwall Wasilla | Alaska Time | 09:00 |
| Kirkwall Waterloo | United Kingdom Time | 00:00 |
| Kirkwall Waterford | Eastern Australia Time | -09:00 |
| Kirkwall Waterford Township | Eastern Time | 05:00 |
| Kirkwall Watkins Glen | Eastern Time | 05:00 |
| Kirkwall Watkinsville | Eastern Time | 05:00 |
| Kirkwall Watson | Eastern Australia Time | -09:00 |
| Kirkwall Watertown | Eastern Time | 05:00 |
| Kirkwall Zermatt | Central European Time | -01:00 |
| Kirkwall Zero Branco | Central European Time | -01:00 |
| Kirkwall Zeven | Central European Time | -01:00 |