| Valkenburg Detroit | Eastern Time | 06:00 |
| Valkenburg Matola | Central Africa Time | 00:00 |
| Valkenburg Culiacán Rosales | Mexican Pacific Time | 08:00 |
| Valkenburg Zaragoza | Central European Time | 00:00 |
| Valkenburg Gorakhpur | India Standard Time | -03:30 |
| Valkenburg Xiangtan | China Time | -06:00 |
| Valkenburg Ipoh | Malaysia Time | -06:00 |
| Valkenburg Mississauga | Eastern Time | 06:00 |
| Valkenburg Boston | Eastern Time | 06:00 |
| Valkenburg Puyang Chengguanzhen | China Time | -06:00 |
| Valkenburg Nantong | China Time | -06:00 |
| Valkenburg Mudanjiang | China Time | -06:00 |
| Valkenburg Athens | Eastern European Time | -01:00 |
| Valkenburg Santo André | Brasilia Time | 05:00 |
| Valkenburg Nouakchott | Greenwich Mean Time | 02:00 |
| Valkenburg Pointe-Noire | West Africa Time | 01:00 |
| Valkenburg Aguascalientes | Central Time | 07:00 |
| Valkenburg Memphis | Central Time | 07:00 |
| Valkenburg Kryvyi Rih | Eastern European Time | -01:00 |
| Valkenburg Acapulco | Central Time | 07:00 |
| Valkenburg João Pessoa | Brasilia Time | 05:00 |
| Valkenburg Ansan-si | Korean Time | -07:00 |
| Valkenburg Benghazi | Eastern European Time | 00:00 |
| Valkenburg Frankfurt | Central European Time | 00:00 |
| Valkenburg Krasnodar | Moscow Time | -01:00 |
| Valkenburg Guilin | China Time | -06:00 |
| Valkenburg Palermo | Central European Time | 00:00 |
| Valkenburg Colombo | India Standard Time | -03:30 |
| Valkenburg Lilongwe | Central Africa Time | 00:00 |
| Valkenburg Oran | Central European Time | 01:00 |
| Valkenburg Diyarbakir | Turkey Time | -01:00 |
| Valkenburg Taguig | Philippine Time | -06:00 |
| Valkenburg New South Memphis | Central Time | 07:00 |
| Valkenburg Ulyanovsk | Ulyanovsk Time | -02:00 |
| Valkenburg Kotli | Pakistan Time | -03:00 |
| Valkenburg Okayama | Japan Time | -07:00 |
| Valkenburg Zhanjiang | China Time | -04:00 |
| Valkenburg Ahmadi | Arabian Time | -01:00 |
| Valkenburg Yogyakarta | Western Indonesia Time | -05:00 |
| Valkenburg North York | Eastern Time | 06:00 |
| Valkenburg Chișinău | Eastern European Time | -01:00 |
| Valkenburg Wrocław | Central European Time | 00:00 |
| Valkenburg Cheongju-si | Korean Time | -07:00 |
| Valkenburg Anyang-si | Korean Time | -07:00 |
| Valkenburg Tebessa | Central European Time | 01:00 |
| Valkenburg Zhenjiang | China Time | -06:00 |
| Valkenburg Portland | Pacific Time | 09:00 |
| Valkenburg Winnipeg | Central Time | 07:00 |
| Valkenburg Andong | China Time | -06:00 |
| Valkenburg Oklahoma City | Central Time | 07:00 |