| Porto Novo Masai | Malaysia Time | -07:00 |
| Porto Novo Bubendorf | Central European Time | 00:00 |
| Porto Novo Mascot | Eastern Australia Time | -10:00 |
| Porto Novo Bryn Athyn | Eastern Time | 06:00 |
| Porto Novo Masca | Western European Time | 01:00 |
| Porto Novo Bryn Mawr | Eastern Time | 06:00 |
| Porto Novo Mascali | Central European Time | 00:00 |
| Porto Novo Carovigno | Central European Time | 00:00 |
| Porto Novo Buena | Eastern Time | 06:00 |
| Porto Novo Bude | United Kingdom Time | 01:00 |
| Porto Novo Bingen | Central European Time | 00:00 |
| Porto Novo Bilthoven | Central European Time | 00:00 |
| Porto Novo Billakempanahalli | India Standard Time | -04:30 |
| Porto Novo Brunstatt | Central European Time | 00:00 |
| Porto Novo Bruneck | Central European Time | 00:00 |
| Porto Novo Brunswick | Central European Time | 00:00 |
| Porto Novo Brunswick East | Eastern Australia Time | -10:00 |
| Porto Novo Brunswick Heads | Eastern Australia Time | -10:00 |
| Porto Novo Bintangor | Malaysia Time | -07:00 |
| Porto Novo Bruceville-Eddy | Central Time | 07:00 |
| Porto Novo Binyamina-Giv'at Ada | Israel Time | -01:00 |
| Porto Novo Bigfork | Mountain Time | 08:00 |
| Porto Novo Biggar | United Kingdom Time | 01:00 |
| Porto Novo Biggera Waters | Eastern Australia Time | -09:00 |
| Porto Novo Big Bear Lake | Pacific Time | 09:00 |
| Porto Novo Big Pine Key | Eastern Time | 06:00 |
| Porto Novo Big Sky | Mountain Time | 08:00 |
| Porto Novo Basaurhi | India Standard Time | -04:30 |
| Porto Novo Bijainagar | India Standard Time | -04:30 |
| Porto Novo Barvaux-sur-Ourthe | Central European Time | 00:00 |
| Porto Novo Barua P | India Standard Time | -04:30 |
| Porto Novo Barrington | Central Time | 07:00 |
| Porto Novo Barranco District | Peru Time | 06:00 |
| Porto Novo Barranquitas | Atlantic Time | 05:00 |
| Porto Novo Barnstable | Eastern Time | 06:00 |
| Porto Novo Barns Green | United Kingdom Time | 01:00 |
| Porto Novo Barnagar | India Standard Time | -04:30 |
| Porto Novo Barnard Castle | United Kingdom Time | 01:00 |