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 Wednesday, 17 September 2025: day of Mercury
- Sunrise
- 07:08
- Sunset
- 19:37
- Next sunrise
- 07:10
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury07:08 – 08:11
- 2☽︎ Moon08:11 – 09:13
- 3♄︎ Saturn09:13 – 10:15
- 4♃︎ Jupiter10:15 – 11:18
- 5♂︎ Mars11:18 – 12:20
- 6☉︎ Sun12:20 – 13:22
- 7♀︎ Venus13:22 – 14:25
- 8☿︎ Mercury14:25 – 15:27
- 9☽︎ Moon15:27 – 16:30
- 10♄︎ Saturn16:30 – 17:32
- 11♃︎ Jupiter17:32 – 18:34
- 12♂︎ Mars18:34 – 19:37
Night
- 1☉︎ Sun19:37 – 20:34
- 2♀︎ Venus20:34 – 21:32
- 3☿︎ Mercury21:32 – 22:30
- 4☽︎ Moon22:30 – 23:28
- 5♄︎ Saturn23:28 – 00:25
- 6♃︎ Jupiter00:25 – 01:23
- 7♂︎ Mars01:23 – 02:21
- 8☉︎ Sun02:21 – 03:19
- 9♀︎ Venus03:19 – 04:16
- 10☿︎ Mercury04:16 – 05:14
- 11☽︎ Moon05:14 – 06:12
- 12♄︎ Saturn06:12 – 07:10
Other cities · France
Questions
How are the planetary hours calculated in Strasbourg?
On Wednesday, 17 September 2025, the Sun rises at 07:08 and sets at 19:37: the day lasts 12h 29m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:10, lasts 11h 33m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mercury, from 07:08 to 08:11: 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.