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 Wednesday, 9 December 2026: day of Mercury
- Sunrise
- 08:17
- Sunset
- 17:35
- Next sunrise
- 08:17
A day hour lasts 47 min; a night hour, 1h 14m. Local time (Europe/Istanbul).
Day
- 1☿︎ Mercury08:17 – 09:03
- 2☽︎ Moon09:03 – 09:50
- 3♄︎ Saturn09:50 – 10:36
- 4♃︎ Jupiter10:36 – 11:23
- 5♂︎ Mars11:23 – 12:09
- 6☉︎ Sun12:09 – 12:56
- 7♀︎ Venus12:56 – 13:42
- 8☿︎ Mercury13:42 – 14:29
- 9☽︎ Moon14:29 – 15:16
- 10♄︎ Saturn15:16 – 16:02
- 11♃︎ Jupiter16:02 – 16:49
- 12♂︎ Mars16:49 – 17:35
Night
- 1☉︎ Sun17:35 – 18:49
- 2♀︎ Venus18:49 – 20:02
- 3☿︎ Mercury20:02 – 21:16
- 4☽︎ Moon21:16 – 22:29
- 5♄︎ Saturn22:29 – 23:43
- 6♃︎ Jupiter23:43 – 00:56
- 7♂︎ Mars00:56 – 02:10
- 8☉︎ Sun02:10 – 03:23
- 9♀︎ Venus03:23 – 04:37
- 10☿︎ Mercury04:37 – 05:50
- 11☽︎ Moon05:50 – 07:04
- 12♄︎ Saturn07:04 – 08:17
Other cities · Türkiye
Questions
How are the planetary hours calculated in Istanbul?
On Wednesday, 9 December 2026, the Sun rises at 08:17 and sets at 17:35: the day lasts 9h 19m, that is twelve day hours of 47 min. The night, until the next sunrise at 08:17, lasts 14h 42m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Mercury, from 08:17 to 09:03: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.