Planetary hours
in Istanbul.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Thursday, 11 December 2025: day of Jupiter
- Sunrise
- 08:18
- Sunset
- 17:35
- Next sunrise
- 08:19
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Istanbul).
Day
- 1♃︎ Jupiter08:18 – 09:05
- 2♂︎ Mars09:05 – 09:51
- 3☉︎ Sun09:51 – 10:38
- 4♀︎ Venus10:38 – 11:24
- 5☿︎ Mercury11:24 – 12:11
- 6☽︎ Moon12:11 – 12:57
- 7♄︎ Saturn12:57 – 13:43
- 8♃︎ Jupiter13:43 – 14:30
- 9♂︎ Mars14:30 – 15:16
- 10☉︎ Sun15:16 – 16:03
- 11♀︎ Venus16:03 – 16:49
- 12☿︎ Mercury16:49 – 17:35
Night
- 1☽︎ Moon17:35 – 18:49
- 2♄︎ Saturn18:49 – 20:03
- 3♃︎ Jupiter20:03 – 21:16
- 4♂︎ Mars21:16 – 22:30
- 5☉︎ Sun22:30 – 23:44
- 6♀︎ Venus23:44 – 00:57
- 7☿︎ Mercury00:57 – 02:11
- 8☽︎ Moon02:11 – 03:25
- 9♄︎ Saturn03:25 – 04:38
- 10♃︎ Jupiter04:38 – 05:52
- 11♂︎ Mars05:52 – 07:06
- 12☉︎ Sun07:06 – 08:19
Other cities · Türkiye
Questions
How are the planetary hours calculated in Istanbul?
On Thursday, 11 December 2025, the Sun rises at 08:18 and sets at 17:35: the day lasts 9h 17m, that is twelve day hours of 46 min. The night, until the next sunrise at 08:19, lasts 14h 44m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Jupiter, from 08:18 to 09:05: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.