Planetary hours
in Strasbourg.
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 Tuesday, 23 December 2025: day of Mars
- Sunrise
- 08:19
- Sunset
- 16:36
- Next sunrise
- 08:19
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:19 – 09:00
- 2☉︎ Sun09:00 – 09:42
- 3♀︎ Venus09:42 – 10:23
- 4☿︎ Mercury10:23 – 11:05
- 5☽︎ Moon11:05 – 11:46
- 6♄︎ Saturn11:46 – 12:28
- 7♃︎ Jupiter12:28 – 13:09
- 8♂︎ Mars13:09 – 13:51
- 9☉︎ Sun13:51 – 14:32
- 10♀︎ Venus14:32 – 15:13
- 11☿︎ Mercury15:13 – 15:55
- 12☽︎ Moon15:55 – 16:36
Night
- 1♄︎ Saturn16:36 – 17:55
- 2♃︎ Jupiter17:55 – 19:14
- 3♂︎ Mars19:14 – 20:32
- 4☉︎ Sun20:32 – 21:51
- 5♀︎ Venus21:51 – 23:09
- 6☿︎ Mercury23:09 – 00:28
- 7☽︎ Moon00:28 – 01:46
- 8♄︎ Saturn01:46 – 03:05
- 9♃︎ Jupiter03:05 – 04:24
- 10♂︎ Mars04:24 – 05:42
- 11☉︎ Sun05:42 – 07:01
- 12♀︎ Venus07:01 – 08:19
Other cities · France
Questions
How are the planetary hours calculated in Strasbourg?
On Tuesday, 23 December 2025, the Sun rises at 08:19 and sets at 16:36: the day lasts 8h 17m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:19, lasts 15h 43m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mars, from 08:19 to 09:00: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.