| Opfikon Saint Margrethen | Central European Time | 00:00 |
| Opfikon Woodbridge Township | Eastern Time | 06:00 |
| Opfikon Teriang | Malaysia Time | -06:00 |
| Opfikon Freeport | Central Time | 07:00 |
| Opfikon Finale Ligure | Central European Time | 00:00 |
| Opfikon Rutherglen | Eastern Australia Time | -08:00 |
| Opfikon Bilthoven | Central European Time | 00:00 |
| Opfikon Freeland | Eastern Time | 06:00 |
| Opfikon Saint Lucia | Eastern Australia Time | -08:00 |
| Opfikon Woodcroft | Central Australia Time | -07:30 |
| Opfikon Sternatia | Central European Time | 00:00 |
| Opfikon Frazier Park | Pacific Time | 09:00 |
| Opfikon Figtree | Eastern Australia Time | -08:00 |
| Opfikon Rusk | Central Time | 07:00 |
| Opfikon Billakempanahalli | India Standard Time | -03:30 |
| Opfikon Frederica | Eastern Time | 06:00 |
| Opfikon Renwick | New Zealand Time | -10:00 |
| Opfikon Waimanalo | Hawaii-Aleutian Time | 12:00 |
| Opfikon Templestowe | Eastern Australia Time | -08:00 |
| Opfikon Franschhoek | South Africa Standard Time | 00:00 |
| Opfikon Fieberbrunn | Central European Time | 00:00 |
| Opfikon Rusutsu | Japan Time | -07:00 |
| Opfikon Bigfork | Mountain Time | 08:00 |
| Opfikon Franz Josef Glacier | New Zealand Time | -10:00 |
| Opfikon Saint Davids | United Kingdom Time | 01:00 |
| Opfikon Waimauku | New Zealand Time | -10:00 |
| Opfikon Templeton | Pacific Time | 09:00 |
| Opfikon Franklin Township | Eastern Time | 06:00 |
| Opfikon East Prairie | Central Time | 07:00 |
| Opfikon Rustington | United Kingdom Time | 01:00 |
| Opfikon Biggar | United Kingdom Time | 01:00 |
| Opfikon Englishtown | Eastern Time | 06:00 |
| Opfikon Saint Croix Falls | Central Time | 07:00 |
| Opfikon Waikanae | New Zealand Time | -10:00 |
| Opfikon Tenala | Eastern European Time | -01:00 |
| Opfikon Enmore | Eastern Australia Time | -08:00 |
| Opfikon Ferozepur | India Standard Time | -03:30 |
| Opfikon Ranya | Arabian Time | -01:00 |
| Opfikon Biggera Waters | Eastern Australia Time | -08:00 |
| Opfikon Embrun | Eastern Time | 06:00 |
| Opfikon Saint-Denis-de-l'Hôtel | Central European Time | 00:00 |
| Opfikon Waite Park | Central Time | 07:00 |
| Opfikon Tenali | India Standard Time | -03:30 |
| Opfikon Elysburg | Eastern Time | 06:00 |
| Opfikon Ferris | Central Time | 07:00 |
| Opfikon Rapid Creek | Central Australia Time | -07:30 |
| Opfikon Big Bear Lake | Pacific Time | 09:00 |
| Opfikon Emalahleni | South Africa Standard Time | 00:00 |
| Opfikon Saint Clairsville | Eastern Time | 06:00 |
| Opfikon Waitomo | New Zealand Time | -10:00 |