July 21, 2026 · Koshigaya, Japan
Koshigaya has 14h 15m of daylight today. Sunrise is at 04:40 and sunset is at 18:55. All times are calculated astronomically for Koshigaya's exact coordinates.
Koshigaya lies at 36°N. At this latitude, day length varies moderately — from around 10 hours in midwinter to 14–15 hours in midsummer.
Day length changes fastest near the spring and autumn equinoxes and slowest near the longest day and shortest day of the year. See the year chart to visualise how daylight hours shift month by month for Koshigaya, or see daylight hours for every day of the year.
The longest day in Koshigaya is around 14h 36m (around June 21). The shortest is around 9h 43m (around December 21). Days are currently getting shorter — losing about 1 minute per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 9h 59m | 06:51 | 16:50 |
| February | 10h 52m | 06:30 | 17:22 |
| March | 11h 55m | 05:54 | 17:48 |
| April | 13h 4m | 05:09 | 18:14 |
| May | 14h 3m | 04:37 | 18:39 |
| June | 14h 35m | 04:25 | 18:59 |
| July | 14h 23m | 04:36 | 18:59 |
| August | 13h 33m | 05:00 | 18:33 |
| September | 12h 27m | 05:24 | 17:51 |
| October | 11h 20m | 05:47 | 17:07 |
| November | 10h 18m | 06:17 | 16:35 |
| December | 9h 45m | 06:44 | 16:29 |