July 20, 2026 · Altona, Germany
Sunset in Altona today is at 21:37. Day length is 16h 20m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Altona's coordinates and updated daily.
Altona lies at 54°N. At this latitude, day length varies significantly through the year — from roughly 7–8 hours in midwinter to 16–17 hours at midsummer.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Altona.
The longest day in Altona is around 17h 3m (around June 21). The shortest is around 7h 27m (around December 21). Days are currently getting shorter — losing about 3 minutes per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 16:31 | 08:30 | 8h 1m |
| February | 17:30 | 07:41 | 9h 49m |
| March | 18:24 | 06:36 | 11h 47m |
| April | 20:20 | 06:22 | 13h 59m |
| May | 21:14 | 05:21 | 15h 53m |
| June | 21:52 | 04:51 | 17h 1m |
| July | 21:43 | 05:10 | 16h 33m |
| August | 20:51 | 06:00 | 14h 52m |
| September | 19:39 | 06:54 | 12h 45m |
| October | 18:26 | 07:47 | 10h 39m |
| November | 16:25 | 07:46 | 8h 39m |
| December | 16:01 | 08:31 | 7h 30m |