See the sunrise and sunset time in Constanța for any day — plus civil, nautical and astronomical twilight, solar noon and day length, computed from the town's coordinates. On the longest day (around 21 June) the sun is up for 15 h 31 min.
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Constanța · 10 July 2026
Precise astronomical times. Sunrise, sunset and twilights are computed from the town’s coordinates (NOAA algorithm), with daylight saving included. Everything runs in your browser, no account, no data sent.
From the town’s coordinates (latitude, longitude) and the chosen date, the Sun’s position in the sky is computed. Sunrise and sunset are when the Sun’s centre is at −0.833° to the horizon, and dawn/dusk at −6° (civil), −12° (nautical) and −18° (astronomical):
In Bucharest, on 10 July 2026, the Sun rises around 05:41 and sets at 21:02 — a day of over 15 hours. Pick another town or date for your own times.
The date defaults to today, so the calculator above shows it instantly. Through the year, sunrise in Constanța ranges from about 05:23 at midsummer to about 07:38 at midwinter.
Around the summer solstice (21 June) the day lasts 15 h 31 min — sunrise near 05:23, sunset near 20:53. At the winter solstice (21 December) it shrinks to 8 h 52 min.
Because of longitude and latitude: more easterly towns see sunrise earlier, and latitude sets how much day length swings with the seasons. Times are computed from Constanța's exact coordinates.
Yes. Times use the Europe/Bucharest time zone, which switches automatically between winter (UTC+2) and summer (UTC+3), so they are correct all year.
They are how far the sun is below the horizon: civil (to −6°, still light enough to read), nautical (−6° to −12°) and astronomical (−12° to −18°, fully dark). All three are shown for Constanța.
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:38 | 16:52 | 9 h 14 min |
| February | 07:07 | 17:35 | 10 h 28 min |
| March | 06:19 | 18:11 | 11 h 52 min |
| April | 06:23 | 19:49 | 13 h 26 min |
| May | 05:40 | 20:25 | 14 h 45 min |
| June | 05:22 | 20:51 | 15 h 29 min |
| July | 05:36 | 20:48 | 15 h 12 min |
| August | 06:09 | 20:13 | 14 h 03 min |
| September | 06:45 | 19:19 | 12 h 34 min |
| October | 07:20 | 18:24 | 11 h 03 min |
| November | 07:01 | 16:41 | 9 h 39 min |
| December | 07:35 | 16:28 | 8 h 54 min |
Sunrise and sunset on the 15th of each month in Constanța (Constanța), Europe/Bucharest time.
In Constanța, the longest day of the year falls around the summer solstice (21 June), when the sun rises at about 05:23 and sets at about 20:53 — a 15 h 31 min day. The shortest day is the winter solstice (21 December): sunrise near 07:38, sunset near 16:30, just 8 h 52 min of daylight.
The "golden hour" is the warm, soft light just after sunrise and before sunset, prized for photography; the "blue hour" is the short window of cool light before sunrise and after sunset. The values below are for the equinox (20 March) in Constanța.
Nearby towns — tap for exact times and the monthly table.
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