| Porto Alegre Anchor Point | Alaska Time | 05:00 |
| Porto Alegre Apt | Central European Time | -05:00 |
| Porto Alegre Kosova Hora | Central European Time | -05:00 |
| Porto Alegre Aptos | Pacific Time | 04:00 |
| Porto Alegre Baden bei Wien | Central European Time | -05:00 |
| Porto Alegre Alba Adriatica | Central European Time | -05:00 |
| Porto Alegre Košice | Central European Time | -05:00 |
| Porto Alegre Alavandipuram | India Standard Time | -08:30 |
| Porto Alegre Badamanavarthekaval | India Standard Time | -08:30 |
| Porto Alegre Alaró | Central European Time | -05:00 |
| Porto Alegre Koshu | Japan Time | -12:00 |
| Porto Alegre Alaska | Atlantic Time | 00:00 |
| Porto Alegre Andergrove | Eastern Australia Time | -13:00 |
| Porto Alegre Alaska | Central Time | 02:00 |
| Porto Alegre Lakhra | Pakistan Time | -08:00 |
| Porto Alegre Alaska | Eastern Time | 01:00 |
| Porto Alegre Anderlecht | Central European Time | -05:00 |
| Porto Alegre Alata | Central European Time | -05:00 |
| Porto Alegre Lakewood Township | Eastern Time | 01:00 |
| Porto Alegre Alappuzha | India Standard Time | -08:30 |
| Porto Alegre Amurrio | Central European Time | -05:00 |
| Porto Alegre Alamarathupatti | India Standard Time | -08:30 |
| Porto Alegre Lakeside | Atlantic Time | 00:00 |
| Porto Alegre Alagón | Central European Time | -05:00 |
| Porto Alegre Amritsar Cantt. | India Standard Time | -08:30 |
| Porto Alegre Alachua | Eastern Time | 01:00 |
| Porto Alegre Lakemba | Eastern Australia Time | -14:00 |
| Porto Alegre Al-Qayrawan | Central European Time | -04:00 |
| Porto Alegre Amsterdam Airport Schiphol | Central European Time | -05:00 |
| Porto Alegre Arazane | Western European Time | -03:00 |
| Porto Alegre Lakeport | Pacific Time | 04:00 |
| Porto Alegre Bailrigg | United Kingdom Time | -04:00 |
| Porto Alegre Anamizu | Japan Time | -12:00 |
| Porto Alegre Bainbridge | Eastern Time | 01:00 |
| Porto Alegre Lake Park | Eastern Time | 01:00 |
| Porto Alegre Baidani | India Standard Time | -08:30 |
| Porto Alegre Anaconda | Mountain Time | 03:00 |
| Porto Alegre Baie-D'Urfe | Eastern Time | 01:00 |
| Porto Alegre Lake Placid | Eastern Time | 01:00 |
| Porto Alegre Baichanalli | India Standard Time | -08:30 |
| Porto Alegre Absecon | Eastern Time | 01:00 |
| Porto Alegre Bahrain | Pakistan Time | -08:00 |
| Porto Alegre Lake Mary | Eastern Time | 01:00 |
| Porto Alegre Bahrs Scrub | Eastern Australia Time | -13:00 |
| Porto Alegre Abu Halifa | Arabian Time | -06:00 |
| Porto Alegre Arcachon | Central European Time | -05:00 |
| Porto Alegre Lamar | Mountain Time | 03:00 |
| Porto Alegre Arco | Central European Time | -05:00 |
| Porto Alegre Amherst | Eastern Time | 01:00 |
| Porto Alegre Balgowlah | Eastern Australia Time | -14:00 |