| Swansea Leek Wootton | United Kingdom Time | 00:00 |
| Swansea Leersum | Central European Time | -01:00 |
| Swansea Legazpi City | Philippine Time | -08:00 |
| Swansea Le Touquet | Central European Time | -01:00 |
| Swansea Leamington | Eastern Time | 05:00 |
| Swansea Leavenworth | Pacific Time | 08:00 |
| Swansea Le Mars | Central Time | 06:00 |
| Swansea Le Puy | Central European Time | -01:00 |
| Swansea Le Pouliguen | Central European Time | -01:00 |
| Swansea Le Puy-Notre-Dame | Central European Time | -01:00 |
| Swansea Le Roy | Central Time | 06:00 |
| Swansea Lyminge | United Kingdom Time | 00:00 |
| Swansea Lyneham | Eastern Australia Time | -11:00 |
| Swansea Lynnfield | Eastern Time | 05:00 |
| Swansea Lyss | Central European Time | -01:00 |
| Swansea Luverne | Central Time | 06:00 |
| Swansea Lydney | United Kingdom Time | 00:00 |
| Swansea Lviv | Eastern European Time | -02:00 |
| Swansea Luzerne | Eastern Time | 05:00 |
| Swansea Lehighton | Eastern Time | 05:00 |
| Swansea Lehragaga | India Standard Time | -05:30 |
| Swansea Lutherville-Timonium | Eastern Time | 05:00 |
| Swansea Luserna San Giovanni | Central European Time | -01:00 |
| Swansea Luquillo | Atlantic Time | 04:00 |
| Swansea Macatawa | Eastern Time | 05:00 |
| Swansea Martigny | Central European Time | -01:00 |
| Swansea Martel | Central European Time | -01:00 |
| Swansea Macherio | Central European Time | -01:00 |
| Swansea Macduff | United Kingdom Time | 00:00 |
| Swansea Macedonia | Eastern Time | 05:00 |
| Swansea Masai | Malaysia Time | -08:00 |
| Swansea Masai | Malaysia Time | -08:00 |
| Swansea Masca | Western European Time | 00:00 |
| Swansea Mascali | Central European Time | -01:00 |
| Swansea Martínez | Argentina Time | 03:00 |
| Swansea Martinsville | Eastern Time | 05:00 |
| Swansea Marton | New Zealand Time | -13:00 |
| Swansea Martin | Central Time | 06:00 |