| Cartagena Apple Springs | Central Time | 01:00 |
| Cartagena Babatngon | Philippine Time | -13:00 |
| Cartagena Applecross | Western Australia Time | -13:00 |
| Cartagena Apollo Beach | Eastern Time | 00:00 |
| Cartagena Antwerp | Central European Time | -06:00 |
| Cartagena Aoulouz | Western European Time | -06:00 |
| Cartagena Aougrout | Central European Time | -06:00 |
| Cartagena Anzola dell'Emilia | Central European Time | -06:00 |
| Cartagena Ao Nang | Indochina Time | -12:00 |
| Cartagena Aoba Ward | Japan Time | -14:00 |
| Cartagena Aoi Ward | Japan Time | -14:00 |
| Cartagena Anzegem | Central European Time | -06:00 |
| Cartagena Anzegem | Central European Time | -06:00 |
| Cartagena Altona | Eastern Australia Time | -16:00 |
| Cartagena Albisola Superiore | Central European Time | -06:00 |
| Cartagena Altona North | Eastern Australia Time | -16:00 |
| Cartagena Altstätten | Central European Time | -06:00 |
| Cartagena Alba Adriatica | Central European Time | -06:00 |
| Cartagena Albert Park | Eastern Australia Time | -16:00 |
| Cartagena Alvarado | Central Time | 01:00 |
| Cartagena Alzenau | Central European Time | -06:00 |
| Cartagena Alvor | Western European Time | -05:00 |
| Cartagena Alverca do Ribatejo | Western European Time | -05:00 |
| Cartagena Amakusa | Japan Time | -14:00 |
| Cartagena Amarante | Western European Time | -05:00 |
| Cartagena Amaravati | India Standard Time | -10:30 |
| Cartagena Agurain | Central European Time | -06:00 |
| Cartagena Al-Qayrawan | Central European Time | -06:00 |
| Cartagena Alachua | Eastern Time | 00:00 |
| Cartagena Alagón | Central European Time | -06:00 |
| Cartagena Alamarathupatti | India Standard Time | -10:30 |
| Cartagena Alappuzha | India Standard Time | -10:30 |
| Cartagena Alaró | Central European Time | -06:00 |
| Cartagena Alavandipuram | India Standard Time | -10:30 |
| Cartagena Alaska | Atlantic Time | -01:00 |
| Cartagena Alaska | Central Time | 01:00 |
| Cartagena Alaska | Eastern Time | 00:00 |
| Cartagena Alata | Central European Time | -06:00 |