| Tangshan Millers Point | Eastern Australia Time | -02:00 |
| Tangshan Millheim | Eastern Time | 12:00 |
| Tangshan Millington | Central Time | 13:00 |
| Tangshan Millner | Central Australia Time | -01:30 |
| Tangshan Millswood | Central Australia Time | -01:30 |
| Tangshan Mareil-Marly | Central European Time | 06:00 |
| Tangshan Margate City | Eastern Time | 12:00 |
| Tangshan Margao | India Standard Time | 02:30 |
| Tangshan Margaret River | Western Australia Time | 00:00 |
| Tangshan Marciana | Central European Time | 06:00 |
| Tangshan Marco Island | Eastern Time | 12:00 |
| Tangshan Marcoola | Eastern Australia Time | -02:00 |
| Tangshan Marathon | Eastern Time | 12:00 |
| Tangshan Marburg | Central European Time | 06:00 |
| Tangshan Marbella | Central European Time | 06:00 |
| Tangshan Lozza | Central European Time | 06:00 |
| Tangshan Maraimalai Nagar | India Standard Time | 02:30 |
| Tangshan Mineral de la Reforma | Central Time | 13:00 |
| Tangshan Minden | Central Time | 13:00 |
| Tangshan Minato | Japan Time | -01:00 |
| Tangshan Milton | Eastern Australia Time | -02:00 |
| Tangshan Millendon | Western Australia Time | 00:00 |
| Tangshan Millwood | Eastern Time | 12:00 |
| Tangshan Milnrow | United Kingdom Time | 07:00 |
| Tangshan Milton | Central Time | 13:00 |
| Tangshan Minami Ward | Japan Time | -01:00 |
| Tangshan Minerva | Eastern Time | 12:00 |
| Tangshan Muang | Indochina Time | 01:00 |
| Tangshan Mukah | Malaysia Time | 00:00 |
| Tangshan Mukkam | India Standard Time | 02:30 |
| Tangshan Neptune City | Eastern Time | 12:00 |
| Tangshan Mülheim | Central European Time | 06:00 |
| Tangshan Mülheim (Moselle) | Central European Time | 06:00 |
| Tangshan Mulhouse | Central European Time | 06:00 |
| Tangshan Much Marcle | United Kingdom Time | 07:00 |
| Tangshan Mueang | Indochina Time | 01:00 |
| Tangshan Mueang Udon Thani | Indochina Time | 01:00 |
| Tangshan Muene Luanda | West Africa Time | 07:00 |