| Effretikon Anjuna | India Standard Time | -03:30 |
| Effretikon Angwin | Pacific Time | 09:00 |
| Effretikon Anna Maria | Eastern Time | 06:00 |
| Effretikon Ankola | India Standard Time | -03:30 |
| Effretikon Anna's Retreat | Atlantic Time | 06:00 |
| Effretikon Annandale | Eastern Australia Time | -08:00 |
| Effretikon Amarante | Western European Time | 01:00 |
| Effretikon Amaravati | India Standard Time | -03:30 |
| Effretikon Ambala Cantt | India Standard Time | -03:30 |
| Effretikon Ambler | Eastern Time | 06:00 |
| Effretikon Ambleside | United Kingdom Time | 01:00 |
| Effretikon America | Central European Time | 00:00 |
| Effretikon Alconaba | Central European Time | 00:00 |
| Effretikon Alcochete | Western European Time | 01:00 |
| Effretikon Alenquer | Western European Time | 01:00 |
| Effretikon Alexander Heights | Western Australia Time | -06:00 |
| Effretikon Alexandria Bay | Eastern Time | 06:00 |
| Effretikon Al Mudayq | Gulf Standard Time | -02:00 |
| Effretikon Alcanar | Central European Time | 00:00 |
| Effretikon Al-Mamurah | Central European Time | 01:00 |
| Effretikon Alfonso Lista | Philippine Time | -06:00 |
| Effretikon Alfornelos | Western European Time | 01:00 |
| Effretikon Alger Centre | Central European Time | 01:00 |
| Effretikon Algerias | Colombia Time | 07:00 |
| Effretikon Algermissen | Central European Time | 00:00 |
| Effretikon Alhos Vedros | Western European Time | 01:00 |
| Effretikon Altona | Eastern Australia Time | -08:00 |
| Effretikon Alhandra | Western European Time | 01:00 |
| Effretikon Algood | Central Time | 07:00 |
| Effretikon Algiers | South Africa Standard Time | 00:00 |
| Effretikon Algoma | Central Time | 07:00 |
| Effretikon Alvarado | Central Time | 07:00 |
| Effretikon Altona North | Eastern Australia Time | -08:00 |
| Effretikon Altstätten | Central European Time | 00:00 |
| Effretikon Amakusa | Japan Time | -07:00 |
| Effretikon Alzenau | Central European Time | 00:00 |
| Effretikon Alvor | Western European Time | 01:00 |
| Effretikon Alverca do Ribatejo | Western European Time | 01:00 |