| Oświęcim Mayfield | United Kingdom Time | 01:00 |
| Oświęcim Mayfield | Central Time | 07:00 |
| Oświęcim Mayotte | Eastern Time | 06:00 |
| Oświęcim Mayville | Eastern Time | 06:00 |
| Oświęcim Maude | Eastern Australia Time | -09:00 |
| Oświęcim Maumee | Eastern Time | 06:00 |
| Oświęcim Mavivi | Central Africa Time | 00:00 |
| Oświęcim Mawgan | United Kingdom Time | 01:00 |
| Oświęcim Mawson Lakes | Central Australia Time | -08:30 |
| Oświęcim Maxey | United Kingdom Time | 01:00 |
| Oświęcim Montana | Central European Time | 00:00 |
| Oświęcim Montanara | Central European Time | 00:00 |
| Oświęcim Montblanc | Central European Time | 00:00 |
| Oświęcim Montauk | Eastern Time | 06:00 |
| Oświęcim Mont-Tremblant | Eastern Time | 06:00 |
| Oświęcim Montague | Eastern Time | 06:00 |
| Oświęcim Montague | Atlantic Time | 05:00 |
| Oświęcim Mont Albert | Eastern Australia Time | -09:00 |
| Oświęcim Nala Sopara | India Standard Time | -03:30 |
| Oświęcim Náměšť nad Oslavou | Central European Time | 00:00 |
| Oświęcim Namur | Central European Time | 00:00 |
| Oświęcim Nandikkara | India Standard Time | -03:30 |
| Oświęcim Nanded-Waghala | India Standard Time | -03:30 |
| Oświęcim Mollerussa | Central European Time | 00:00 |
| Oświęcim Mollis | Central European Time | 00:00 |
| Oświęcim Mollem | India Standard Time | -03:30 |
| Oświęcim Mokpo-si | Korean Time | -07:00 |
| Oświęcim Mönchengladbach | Central European Time | 00:00 |
| Oświęcim Monchique | Western European Time | 01:00 |
| Oświęcim Monastero Bormida | Central European Time | 00:00 |
| Oświęcim Monastier di Treviso | Central European Time | 00:00 |
| Oświęcim Monreal del Campo | Central European Time | 00:00 |
| Oświęcim Monona | Central Time | 07:00 |
| Oświęcim Monkton | Eastern Time | 06:00 |
| Oświęcim Monmouth | Central Time | 07:00 |
| Oświęcim Monroe Township | Eastern Time | 06:00 |
| Oświęcim Moniga del Garda | Central European Time | 00:00 |
| Oświęcim Monguelfo-Tesido | Central European Time | 00:00 |