Bolu

Sunrise and sunset in Bolu

Today’s sunrise, sunset and twilight in Bolu, in local time. At 40.7° N, the day lasts from 9 h 15 min at the winter solstice to 15 h 06 min at the summer solstice.

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Today · worked out at

Thursday, October 22: sunrise at 07:12, sunset at 18:03.

Day length 10 h 51 min, 2 min 33 s shorter than yesterday.

Solar noon at 12:38, with the Sun 38° above the horizon.

Times are Bolu time (GMT+3).

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Twilight and golden hour today

TodayMorningEvening
Astronomical twilight05:4019:34
Nautical twilight06:1219:03
Civil twilight06:4418:31
Sunrise and sunset07:1218:03
Golden hour07:12–07:4917:25–18:03

Each twilight begins at the morning time and ends at the evening one.

Fajr, Dhuhr, Asr, Maghrib and Isha: Prayer times in Bolu

The year in Bolu

  • Longest day: June 21, 15 h 06 min, from sunrise at 05:22 to sunset at 20:28.
  • Shortest day: December 21, 9 h 15 min, from sunrise at 08:14 to sunset at 17:29.

Sunrise and sunset on the 21st of each month, 2026

DateSunriseSunsetDay length
January 2108:1217:579 h 45 min
February 2107:3918:3510 h 56 min
March 2106:5519:0612 h 11 min
April 2106:0619:3913 h 33 min
May 2105:3120:0914 h 38 min
June 2105:2220:2815 h 06 min
July 2105:3920:1914 h 40 min
August 2106:0919:4313 h 34 min
September 2106:3918:5212 h 13 min
October 2107:1118:0410 h 54 min
November 2107:4717:319 h 44 min
December 2108:1417:299 h 15 min

Good to know

  • Sunrise and sunset are when the top of the Sun meets a level horizon, allowing for the usual bending of light by the air. Hills, buildings and height shift what you see by a few minutes.
  • Civil, nautical and astronomical twilight end when the Sun is 6°, 12° and 18° below the horizon. Golden hour here is the photographers’ usual definition: the Sun less than 6° above it.
  • Worked out when the page loads from NOAA’s solar equations, for 40.7° N, 31.6° E, and accurate to about a minute.

How the layers work, where their data comes from and what they can’t tell you: Day and night, live, The Sun, Moon and planets

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