July 21, 2026 · Saint-Quentin-en-Yvelines, France
Sunset in Saint-Quentin-en-Yvelines today is at 21:46. Day length is 15h 34m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Saint-Quentin-en-Yvelines's coordinates and updated daily.
Saint-Quentin-en-Yvelines lies at 49°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 Saint-Quentin-en-Yvelines.
The longest day in Saint-Quentin-en-Yvelines is around 16h 10m (around June 21). The shortest is around 8h 15m (around December 21). Days are currently getting shorter — losing about 2 minutes per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 17:23 | 08:41 | 8h 42m |
| February | 18:13 | 08:01 | 10h 11m |
| March | 18:57 | 07:07 | 11h 50m |
| April | 20:43 | 07:02 | 13h 41m |
| May | 21:27 | 06:12 | 15h 15m |
| June | 21:57 | 05:49 | 16h 8m |
| July | 21:52 | 06:05 | 15h 47m |
| August | 21:09 | 06:45 | 14h 24m |
| September | 20:07 | 07:29 | 12h 38m |
| October | 19:05 | 08:12 | 10h 52m |
| November | 17:14 | 08:01 | 9h 13m |
| December | 16:57 | 08:39 | 8h 18m |