| Sion Chotebor | Central European Time | 00:00 |
| Sion Westmead | Eastern Australia Time | -08:00 |
| Sion Christies Beach | Central Australia Time | -07:30 |
| Sion Weston Subedge | United Kingdom Time | 01:00 |
| Sion Chryston | United Kingdom Time | 01:00 |
| Sion Westville | South Africa Standard Time | 00:00 |
| Sion Chukai | Malaysia Time | -06:00 |
| Sion Wetaskiwin | Mountain Time | 08:00 |
| Sion Chuo | Japan Time | -07:00 |
| Sion Villasequilla | Central European Time | 00:00 |
| Sion Caroline Springs | Eastern Australia Time | -08:00 |
| Sion Villawood | Eastern Australia Time | -08:00 |
| Sion Carolina Beach | Eastern Time | 06:00 |
| Sion Villaga | Central European Time | 00:00 |
| Sion Carnforth | United Kingdom Time | 01:00 |
| Sion Villaines-la-Juhel | Central European Time | 00:00 |
| Sion Carole Park | Eastern Australia Time | -08:00 |
| Sion Uesslingen-Buch | Central European Time | 00:00 |
| Sion Carnac | Central European Time | 00:00 |
| Sion Udupi | India Standard Time | -03:30 |
| Sion Carmel-by-the-Sea | Pacific Time | 09:00 |
| Sion Uccle | Central European Time | 00:00 |
| Sion Tyngsborough | Eastern Time | 06:00 |
| Sion Tylden | Eastern Australia Time | -08:00 |
| Sion Twinstead | United Kingdom Time | 01:00 |
| Sion tx. Hương Thủy | Indochina Time | -05:00 |
| Sion Tybee Island | Eastern Time | 06:00 |
| Sion Tweed Heads | Eastern Australia Time | -08:00 |
| Sion Tweed Heads South | Eastern Australia Time | -08:00 |
| Sion Tuscola | Central Time | 07:00 |
| Sion Tusmore | Central Australia Time | -07:30 |
| Sion Tutuhan | Chamorro Standard Time | -08:00 |
| Sion Zillah | Pacific Time | 09:00 |
| Sion Zirakpur | India Standard Time | -03:30 |
| Sion Zikhron Ya'akov | Israel Time | -01:00 |
| Sion Zhongshan | China Time | -06:00 |
| Sion Zofingen | Central European Time | 00:00 |
| Sion Zollikerberg | Central European Time | 00:00 |