| Montana Abanilla | Central European Time | 00:00 |
| Montana Aberlady | United Kingdom Time | 01:00 |
| Montana Abisko | Central European Time | 00:00 |
| Montana Abingdon | Eastern Time | 06:00 |
| Montana Abington | Eastern Time | 06:00 |
| Montana Aberdeen | Central Time | 07:00 |
| Montana Abeibara | Greenwich Mean Time | 01:00 |
| Montana Abbotsford | Eastern Australia Time | -10:00 |
| Montana Ajijic | Central Time | 07:00 |
| Montana Akköy | Turkey Time | -02:00 |
| Montana Al Aaroui | Western European Time | 01:00 |
| Montana Akrotiri | Eastern European Time | -01:00 |
| Montana Aigle | Central European Time | 00:00 |
| Montana Aiea | Hawaii-Aleutian Time | 11:00 |
| Montana Agurain | Central European Time | 00:00 |
| Montana Aitkenvale | Eastern Australia Time | -09:00 |
| Montana Airport West | Eastern Australia Time | -10:00 |
| Montana Air Itam | Malaysia Time | -07:00 |
| Montana Ajanta | India Standard Time | -04:30 |
| Montana Alenquer | Western European Time | 01:00 |
| Montana Alconaba | Central European Time | 00:00 |
| Montana Alcochete | Western European Time | 01:00 |
| Montana Alcanar | Central European Time | 00:00 |
| Montana Alexander Heights | Western Australia Time | -07:00 |
| Montana Alexandria Bay | Eastern Time | 06:00 |
| Montana Algood | Central Time | 07:00 |
| Montana Algiers | South Africa Standard Time | -01:00 |
| Montana Algoma | Central Time | 07:00 |
| Montana Alfonso Lista | Philippine Time | -07:00 |
| Montana Alfornelos | Western European Time | 01:00 |
| Montana Alger Centre | Central European Time | 00:00 |
| Montana Algerias | Colombia Time | 06:00 |
| Montana Algermissen | Central European Time | 00:00 |
| Montana Al Mudayq | Gulf Standard Time | -03:00 |
| Montana Al Jaradiyah | Arabian Time | -02:00 |
| Montana Al-Mamurah | Central European Time | 00:00 |
| Montana Al Jaghbub | Eastern European Time | -01:00 |
| Montana Al Hofuf | Arabian Time | -02:00 |