| Valkenburg Azambuja | Western European Time | 01:00 |
| Valkenburg Sayalonga | Central European Time | 00:00 |
| Valkenburg Azay-le-Rideau | Central European Time | 00:00 |
| Valkenburg Azzano Mella | Central European Time | 00:00 |
| Valkenburg Ba | Fiji Time | -12:00 |
| Valkenburg Ayoor | India Standard Time | -04:30 |
| Valkenburg Ayer Baloi | Malaysia Time | -07:00 |
| Valkenburg Ayer Keroh | Malaysia Time | -07:00 |
| Valkenburg Ayer's Cliff | Eastern Time | 06:00 |
| Valkenburg Ayia Napa | Eastern European Time | -01:00 |
| Valkenburg Ayden | Eastern Time | 06:00 |
| Valkenburg Ay | Central European Time | 00:00 |
| Valkenburg Axapusco | Central Time | 07:00 |
| Valkenburg Avon | Eastern Time | 06:00 |
| Valkenburg Avry | Central European Time | 00:00 |
| Valkenburg Avsallar Belediyesi | Turkey Time | -02:00 |
| Valkenburg Anglesea | Eastern Australia Time | -10:00 |
| Valkenburg Angwin | Pacific Time | 09:00 |
| Valkenburg Ankola | India Standard Time | -04:30 |
| Valkenburg Anjuna | India Standard Time | -04:30 |
| Valkenburg Avon | United Kingdom Time | 01:00 |
| Valkenburg Avon-by-the-Sea | Eastern Time | 06:00 |
| Valkenburg Anna Maria | Eastern Time | 06:00 |
| Valkenburg Anna's Retreat | Atlantic Time | 05:00 |
| Valkenburg Annandale | Eastern Australia Time | -10:00 |
| Valkenburg Ambala Cantt | India Standard Time | -04:30 |
| Valkenburg Ambler | Eastern Time | 06:00 |
| Valkenburg Ambleside | United Kingdom Time | 01:00 |
| Valkenburg Ange-Gardien | Eastern Time | 06:00 |
| Valkenburg Ang Sila | Indochina Time | -06:00 |
| Valkenburg Angadipuram | India Standard Time | -04:30 |
| Valkenburg America | Central European Time | 00:00 |
| Valkenburg Albisola Superiore | Central European Time | 00:00 |
| Valkenburg Altona | Eastern Australia Time | -10:00 |
| Valkenburg Altona North | Eastern Australia Time | -10:00 |
| Valkenburg Altstätten | Central European Time | 00:00 |
| Valkenburg Alba Adriatica | Central European Time | 00:00 |
| Valkenburg Albert Park | Eastern Australia Time | -10:00 |
| Valkenburg Alvarado | Central Time | 07:00 |
| Valkenburg Alzenau | Central European Time | 00:00 |
| Valkenburg Alvor | Western European Time | 01:00 |
| Valkenburg Alverca do Ribatejo | Western European Time | 01:00 |
| Valkenburg Amakusa | Japan Time | -08:00 |
| Valkenburg Amarante | Western European Time | 01:00 |
| Valkenburg Amaravati | India Standard Time | -04:30 |
| Valkenburg Alavandipuram | India Standard Time | -04:30 |
| Valkenburg Alaska | Atlantic Time | 05:00 |
| Valkenburg Alaska | Central Time | 07:00 |
| Valkenburg Alaska | Eastern Time | 06:00 |
| Valkenburg Alata | Central European Time | 00:00 |