All times have been adjusted in Belgian local time (UTC + 1 hour in winter time and UTC + 2 hours in summer time).
For the year 2021:
| Spring | 20 March | 10h37 |
| Summer | 21 June | 5h32 |
| Autumn | 22 September | 21h21 |
| Winter | 21 December | 16h59 |
All times have been adjusted in Belgian local time (UTC + 1 hour in winter time and UTC + 2 hours in summer time).
For the year 2021:
| Spring | 20 March | 10h37 |
| Summer | 21 June | 5h32 |
| Autumn | 22 September | 21h21 |
| Winter | 21 December | 16h59 |