| Castlemaine Ypres | Central European Time | 08:00 |
| Castlemaine McMurray | Eastern Time | 14:00 |
| Castlemaine McRae | Eastern Time | 14:00 |
| Castlemaine Mdina | Central European Time | 08:00 |
| Castlemaine Mbour | Greenwich Mean Time | 10:00 |
| Castlemaine Medfield | Eastern Time | 14:00 |
| Castlemaine Media | Eastern Time | 14:00 |
| Castlemaine Medina | Western Australia Time | 02:00 |
| Castlemaine Mecina-Fondales | Central European Time | 08:00 |
| Castlemaine Meckenbeuren | Central European Time | 08:00 |
| Castlemaine Mecheri | India Standard Time | 04:30 |
| Castlemaine Meadville | Eastern Time | 14:00 |
| Castlemaine Meaford | Eastern Time | 14:00 |
| Castlemaine Mebane | Eastern Time | 14:00 |
| Castlemaine Mechanicsburg | Eastern Time | 14:00 |
| Castlemaine Naqoura | Eastern European Time | 07:00 |
| Castlemaine Naples | Central European Time | 08:00 |
| Castlemaine Napoleon | Eastern Time | 14:00 |
| Castlemaine Morrinsville | New Zealand Time | -02:00 |
| Castlemaine Morris Plains | Eastern Time | 14:00 |
| Castlemaine Morrisburg | Eastern Time | 14:00 |
| Castlemaine Morrow | Eastern Time | 14:00 |
| Castlemaine Morro Bay | Pacific Time | 17:00 |
| Castlemaine Napier | New Zealand Time | -02:00 |
| Castlemaine Napier | South Africa Standard Time | 08:00 |
| Castlemaine Morpeth | United Kingdom Time | 09:00 |
| Castlemaine Morley | Western Australia Time | 02:00 |
| Castlemaine Mormoiron | Central European Time | 08:00 |
| Castlemaine Morningside | Eastern Australia Time | 00:00 |
| Castlemaine Morges | Central European Time | 08:00 |
| Castlemaine Natividad | Philippine Time | 02:00 |
| Castlemaine Natural Heritage Area Trang | Indochina Time | 03:00 |
| Castlemaine Nassington | United Kingdom Time | 09:00 |
| Castlemaine Nashdale | Eastern Australia Time | 00:00 |
| Castlemaine Narrabeen | Eastern Australia Time | 00:00 |
| Castlemaine Narragansett | Eastern Time | 14:00 |
| Castlemaine Narvik | Central European Time | 08:00 |
| Castlemaine Narusawa | Japan Time | 01:00 |