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, 16 December 2026: day of Mercury
- Sunrise
- 08:22
- Sunset
- 17:36
- Next sunrise
- 08:23
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Istanbul).
Day
- 1☿︎ Mercury08:22 – 09:08
- 2☽︎ Moon09:08 – 09:54
- 3♄︎ Saturn09:54 – 10:41
- 4♃︎ Jupiter10:41 – 11:27
- 5♂︎ Mars11:27 – 12:13
- 6☉︎ Sun12:13 – 12:59
- 7♀︎ Venus12:59 – 13:45
- 8☿︎ Mercury13:45 – 14:32
- 9☽︎ Moon14:32 – 15:18
- 10♄︎ Saturn15:18 – 16:04
- 11♃︎ Jupiter16:04 – 16:50
- 12♂︎ Mars16:50 – 17:36
Night
- 1☉︎ Sun17:36 – 18:50
- 2♀︎ Venus18:50 – 20:04
- 3☿︎ Mercury20:04 – 21:18
- 4☽︎ Moon21:18 – 22:32
- 5♄︎ Saturn22:32 – 23:46
- 6♃︎ Jupiter23:46 – 01:00
- 7♂︎ Mars01:00 – 02:13
- 8☉︎ Sun02:13 – 03:27
- 9♀︎ Venus03:27 – 04:41
- 10☿︎ Mercury04:41 – 05:55
- 11☽︎ Moon05:55 – 07:09
- 12♄︎ Saturn07:09 – 08:23
Other cities · Türkiye
Questions
How are the planetary hours calculated in Istanbul?
On Wednesday, 16 December 2026, the Sun rises at 08:22 and sets at 17:36: the day lasts 9h 14m, that is twelve day hours of 46 min. The night, until the next sunrise at 08:23, lasts 14h 46m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Mercury, 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: 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.