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 Friday, 19 December 2025: day of Venus
- Sunrise
- 08:17
- Sunset
- 16:34
- Next sunrise
- 08:18
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Paris).
Day
- 1♀︎ Venus08:17 – 08:58
- 2☿︎ Mercury08:58 – 09:40
- 3☽︎ Moon09:40 – 10:21
- 4♄︎ Saturn10:21 – 11:03
- 5♃︎ Jupiter11:03 – 11:44
- 6♂︎ Mars11:44 – 12:26
- 7☉︎ Sun12:26 – 13:07
- 8♀︎ Venus13:07 – 13:49
- 9☿︎ Mercury13:49 – 14:30
- 10☽︎ Moon14:30 – 15:11
- 11♄︎ Saturn15:11 – 15:53
- 12♃︎ Jupiter15:53 – 16:34
Night
- 1♂︎ Mars16:34 – 17:53
- 2☉︎ Sun17:53 – 19:12
- 3♀︎ Venus19:12 – 20:30
- 4☿︎ Mercury20:30 – 21:49
- 5☽︎ Moon21:49 – 23:07
- 6♄︎ Saturn23:07 – 00:26
- 7♃︎ Jupiter00:26 – 01:45
- 8♂︎ Mars01:45 – 03:03
- 9☉︎ Sun03:03 – 04:22
- 10♀︎ Venus04:22 – 05:40
- 11☿︎ Mercury05:40 – 06:59
- 12☽︎ Moon06:59 – 08:18
Other cities · France
Questions
How are the planetary hours calculated in Strasbourg?
On Friday, 19 December 2025, the Sun rises at 08:17 and sets at 16:34: the day lasts 8h 17m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:18, lasts 15h 43m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Venus, from 08:17 to 08:58: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.