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, 20 August 2025: day of Mercury
- Sunrise
- 06:29
- Sunset
- 20:34
- Next sunrise
- 06:30
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury06:29 – 07:39
- 2☽︎ Moon07:39 – 08:50
- 3♄︎ Saturn08:50 – 10:00
- 4♃︎ Jupiter10:00 – 11:11
- 5♂︎ Mars11:11 – 12:21
- 6☉︎ Sun12:21 – 13:31
- 7♀︎ Venus13:31 – 14:42
- 8☿︎ Mercury14:42 – 15:52
- 9☽︎ Moon15:52 – 17:03
- 10♄︎ Saturn17:03 – 18:13
- 11♃︎ Jupiter18:13 – 19:23
- 12♂︎ Mars19:23 – 20:34
Night
- 1☉︎ Sun20:34 – 21:23
- 2♀︎ Venus21:23 – 22:13
- 3☿︎ Mercury22:13 – 23:03
- 4☽︎ Moon23:03 – 23:53
- 5♄︎ Saturn23:53 – 00:42
- 6♃︎ Jupiter00:42 – 01:32
- 7♂︎ Mars01:32 – 02:22
- 8☉︎ Sun02:22 – 03:12
- 9♀︎ Venus03:12 – 04:01
- 10☿︎ Mercury04:01 – 04:51
- 11☽︎ Moon04:51 – 05:41
- 12♄︎ Saturn05:41 – 06:30
Other cities · France
Questions
How are the planetary hours calculated in Strasbourg?
On Wednesday, 20 August 2025, the Sun rises at 06:29 and sets at 20:34: the day lasts 14h 05m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 06:30, lasts 9h 57m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Mercury, from 06:29 to 07:39: 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.