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 Monday, 15 December 2025: day of the Moon
- Sunrise
- 08:22
- Sunset
- 17:36
- Next sunrise
- 08:22
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Istanbul).
Day
- 1☽︎ Moon08:22 – 09:08
- 2♄︎ Saturn09:08 – 09:54
- 3♃︎ Jupiter09:54 – 10:40
- 4♂︎ Mars10:40 – 11:26
- 5☉︎ Sun11:26 – 12:13
- 6♀︎ Venus12:13 – 12:59
- 7☿︎ Mercury12:59 – 13:45
- 8☽︎ Moon13:45 – 14:31
- 9♄︎ Saturn14:31 – 15:18
- 10♃︎ Jupiter15:18 – 16:04
- 11♂︎ Mars16:04 – 16:50
- 12☉︎ Sun16:50 – 17:36
Night
- 1♀︎ Venus17:36 – 18:50
- 2☿︎ Mercury18:50 – 20:04
- 3☽︎ Moon20:04 – 21:18
- 4♄︎ Saturn21:18 – 22:32
- 5♃︎ Jupiter22:32 – 23:45
- 6♂︎ Mars23:45 – 00:59
- 7☉︎ Sun00:59 – 02:13
- 8♀︎ Venus02:13 – 03:27
- 9☿︎ Mercury03:27 – 04:41
- 10☽︎ Moon04:41 – 05:55
- 11♄︎ Saturn05:55 – 07:08
- 12♃︎ Jupiter07:08 – 08:22
Other cities · Türkiye
Questions
How are the planetary hours calculated in Istanbul?
On Monday, 15 December 2025, the Sun rises at 08:22 and sets at 17:36: the day lasts 9h 15m, that is twelve day hours of 46 min. The night, until the next sunrise at 08:22, lasts 14h 46m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
The Moon, from 08:22 to 09:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.