All times have been adjusted in Belgian local time (UTC + 1 hour in winter time and UTC + 2 hours in summer time).
The days lengthen
- in January with 1h3min
- in February with 1h35min
- in March with 2h0min
- in April with 1h59min
- in May with 1h41min
- in June (1-21) with 26 min
The days shorten
- in June (21-30) with 5 min
- in July with 1h16min
- in August with 1h57min
- in September with 1h57min
- in October with 1h52min
- in November with 1h20min
- in December (1-22) with 21 min
The days lengthen again
- in December (22-31) with 4 min