| Vulcan Matarbari | Bangladesh Time | -03:00 |
| Vulcan Maylands | Western Australia Time | -05:00 |
| Vulcan Mayotte | Eastern Time | 07:00 |
| Vulcan Mayville | Eastern Time | 07:00 |
| Vulcan Moka | Mauritius Time | -01:00 |
| Vulcan Mayfield | Eastern Australia Time | -07:00 |
| Vulcan Mayfield | United Kingdom Time | 02:00 |
| Vulcan Mayfield | Central Time | 08:00 |
| Vulcan Mawson Lakes | Central Australia Time | -06:30 |
| Vulcan Maxey | United Kingdom Time | 02:00 |
| Vulcan Mollis | Central European Time | 01:00 |
| Vulcan Monastero Bormida | Central European Time | 01:00 |
| Vulcan Monastier di Treviso | Central European Time | 01:00 |
| Vulcan Mokpo-si | Korean Time | -06:00 |
| Vulcan Mollem | India Standard Time | -02:30 |
| Vulcan Mollerussa | Central European Time | 01:00 |
| Vulcan Montauk | Eastern Time | 07:00 |
| Vulcan Montblanc | Central European Time | 01:00 |
| Vulcan Napier | New Zealand Time | -09:00 |
| Vulcan Napier | South Africa Standard Time | 01:00 |
| Vulcan Naqoura | Eastern European Time | 00:00 |
| Vulcan Naples | Central European Time | 01:00 |
| Vulcan Napoleon | Eastern Time | 07:00 |
| Vulcan Mont-Tremblant | Eastern Time | 07:00 |
| Vulcan Montague | Eastern Time | 07:00 |
| Vulcan Montague | Atlantic Time | 06:00 |
| Vulcan Montana | Central European Time | 01:00 |
| Vulcan Montanara | Central European Time | 01:00 |
| Vulcan Mont Albert | Eastern Australia Time | -07:00 |
| Vulcan Monroe Township | Eastern Time | 07:00 |
| Vulcan Monreal del Campo | Central European Time | 01:00 |
| Vulcan Monona | Central Time | 08:00 |
| Vulcan Monkton | Eastern Time | 07:00 |
| Vulcan Monmouth | Central Time | 08:00 |
| Vulcan Moniga del Garda | Central European Time | 01:00 |
| Vulcan Monguelfo-Tesido | Central European Time | 01:00 |
| Vulcan Mönchengladbach | Central European Time | 01:00 |
| Vulcan Monchique | Western European Time | 02:00 |