| Sleman Seseña Nuevo | Central European Time | 06:00 |
| Sleman Zanzibar Town | East Africa Time | 04:00 |
| Sleman Serranópolis | Brasilia Time | 10:00 |
| Sleman Zephyr | Eastern Time | 11:00 |
| Sleman Seri Gading | Malaysia Time | -01:00 |
| Sleman Zephyrhills | Eastern Time | 11:00 |
| Sleman Seri Kembangan | Malaysia Time | -01:00 |
| Sleman Seri Manjung | Malaysia Time | -01:00 |
| Sleman Serdang | Malaysia Time | -01:00 |
| Sleman Sequim | Pacific Time | 14:00 |
| Sleman Seoul | Korean Time | -02:00 |
| Sleman Seoul | Korean Time | -02:00 |
| Sleman Sepang | Malaysia Time | -01:00 |
| Sleman Sepang | Malaysia Time | -01:00 |
| Sleman Wolverton | United Kingdom Time | 07:00 |
| Sleman Wommelgem | Central European Time | 06:00 |
| Sleman Woodbridge | Eastern Time | 11:00 |
| Sleman Woodbridge Township | Eastern Time | 11:00 |
| Sleman Wohratal | Central European Time | 06:00 |
| Sleman Wolfschlugen | Central European Time | 06:00 |
| Sleman Wolfville | Atlantic Time | 10:00 |
| Sleman Wolkersdorf im Weinviertel | Central European Time | 06:00 |
| Sleman Wittenberg | Central European Time | 06:00 |
| Sleman Wivenhoe | United Kingdom Time | 07:00 |
| Sleman Winton | New Zealand Time | -06:00 |
| Sleman Winterville | Eastern Time | 11:00 |
| Sleman Wisconsin Dells | Central Time | 12:00 |
| Sleman Wirksworth | United Kingdom Time | 07:00 |
| Sleman Wirsberg | Central European Time | 06:00 |
| Sleman Zuidhorn | Central European Time | 06:00 |
| Sleman Zuidoostbeemster | Central European Time | 06:00 |
| Sleman Zugliano | Central European Time | 06:00 |
| Sleman Zoutelande | Central European Time | 06:00 |
| Sleman Woodcroft | Central Australia Time | -03:30 |
| Sleman Zweisimmen | Central European Time | 06:00 |
| Sleman Zürs | Central European Time | 06:00 |
| Sleman Zwingenberg | Central European Time | 06:00 |
| Sleman Zwiefalten | Central European Time | 06:00 |