| Haverfordwest Mavivi | Central Africa Time | -01:00 |
| Haverfordwest Honesdale | Eastern Time | 05:00 |
| Haverfordwest Mawgan | United Kingdom Time | 00:00 |
| Haverfordwest Honfleur | Central European Time | -01:00 |
| Haverfordwest Mawson Lakes | Central Australia Time | -08:30 |
| Haverfordwest Hong | Central European Time | -01:00 |
| Haverfordwest Maxey | United Kingdom Time | 00:00 |
| Haverfordwest Hong Kong | Hong Kong Time | -07:00 |
| Haverfordwest Maude | Eastern Australia Time | -09:00 |
| Haverfordwest Hong Kong | Hong Kong Time | -07:00 |
| Haverfordwest Matten bei Interlaken | Central European Time | -01:00 |
| Haverfordwest Hong Kong | Hong Kong Time | -07:00 |
| Haverfordwest Matraville | Eastern Australia Time | -09:00 |
| Haverfordwest Guerneville | Pacific Time | 08:00 |
| Haverfordwest Mollerussa | Central European Time | -01:00 |
| Haverfordwest Holywood | United Kingdom Time | 00:00 |
| Haverfordwest Mollem | India Standard Time | -04:30 |
| Haverfordwest Holmes Beach | Eastern Time | 05:00 |
| Haverfordwest Mokpo-si | Korean Time | -08:00 |
| Haverfordwest Holme's Hill | United Kingdom Time | 00:00 |
| Haverfordwest Moka | Mauritius Time | -03:00 |
| Haverfordwest Hollywood | Eastern Time | 05:00 |
| Haverfordwest Mayotte | Eastern Time | 05:00 |
| Haverfordwest Holly Hill | Eastern Time | 05:00 |
| Haverfordwest Mayville | Eastern Time | 05:00 |
| Haverfordwest Holly Hill | Eastern Time | 05:00 |
| Haverfordwest Moniga del Garda | Central European Time | -01:00 |
| Haverfordwest Guardiagrele | Central European Time | -01:00 |
| Haverfordwest Monguelfo-Tesido | Central European Time | -01:00 |
| Haverfordwest Guarne | Colombia Time | 06:00 |
| Haverfordwest Monastero Bormida | Central European Time | -01:00 |
| Haverfordwest Guatapé | Colombia Time | 06:00 |
| Haverfordwest Monastier di Treviso | Central European Time | -01:00 |
| Haverfordwest Gudalur | India Standard Time | -04:30 |
| Haverfordwest Mönchengladbach | Central European Time | -01:00 |
| Haverfordwest Guayana City | Venezuela Time | 05:00 |
| Haverfordwest Monchique | Western European Time | 00:00 |
| Haverfordwest Mollis | Central European Time | -01:00 |