| Ruka Alfornelos | Western European Time | 02:00 |
| Ruka Simpang Renggam | Malaysia Time | -06:00 |
| Ruka Alger Centre | Central European Time | 01:00 |
| Ruka Silay City | Philippine Time | -06:00 |
| Ruka Algerias | Colombia Time | 07:00 |
| Ruka Sikardarpur | India Standard Time | -03:30 |
| Ruka Algermissen | Central European Time | 01:00 |
| Ruka Sikkarimedu | India Standard Time | -03:30 |
| Ruka Al Mudayq | Gulf Standard Time | -02:00 |
| Ruka San Juan de Miraflores | Peru Time | 07:00 |
| Ruka Al Jaradiyah | Arabian Time | -01:00 |
| Ruka San Juan del Sur | Central Time | 08:00 |
| Ruka Al-Mamurah | Central European Time | 01:00 |
| Ruka San Juan Bautista | Eastern Time | 07:00 |
| Ruka Al Jaghbub | Eastern European Time | 00:00 |
| Ruka San Joaquín | Colombia Time | 07:00 |
| Ruka Al Hofuf | Arabian Time | -01:00 |
| Ruka Ruidoso | Mountain Time | 09:00 |
| Ruka Ruinen | Central European Time | 01:00 |
| Ruka Ruffec | Central European Time | 01:00 |
| Ruka Rudrapur | India Standard Time | -03:30 |
| Ruka Sativali | India Standard Time | -03:30 |
| Ruka Sassenberg | Central European Time | 01:00 |
| Ruka Sassnitz | Central European Time | 01:00 |
| Ruka San Leone | Central European Time | 01:00 |
| Ruka Sauda | Central European Time | 01:00 |
| Ruka Saugatuck | Eastern Time | 07:00 |
| Ruka Saugeen Shores | Eastern Time | 07:00 |
| Ruka Saugeen Shores | Eastern Time | 07:00 |
| Ruka Saugerties | Eastern Time | 07:00 |
| Ruka Satna | India Standard Time | -03:30 |
| Ruka Sault Ste. Marie | Eastern Time | 07:00 |
| Ruka Sausalito | Pacific Time | 10:00 |
| Ruka Savar Kundla | India Standard Time | -03:30 |
| Ruka Tsukuba | Japan Time | -07:00 |
| Ruka Vera | Central European Time | 01:00 |
| Ruka Veresegyház | Central European Time | 01:00 |
| Ruka Tuaran | Malaysia Time | -06:00 |
| Ruka Tuart Hill | Western Australia Time | -06:00 |
| Ruka Tubac | Mountain Time | 09:00 |
| Ruka Trinity | Eastern Time | 07:00 |
| Ruka Troedyrhiw | United Kingdom Time | 02:00 |
| Ruka Trogir | Central European Time | 01:00 |
| Ruka Tropea | Central European Time | 01:00 |
| Ruka Trowse Newton | United Kingdom Time | 02:00 |
| Ruka Tekonsha | Eastern Time | 07:00 |
| Ruka Tel Mond | Israel Time | 00:00 |
| Ruka Teluk Kumbar | Malaysia Time | -06:00 |
| Ruka Trimbak | India Standard Time | -03:30 |
| Ruka Tembhurni | India Standard Time | -03:30 |