Planetary hours
in Le Havre.
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 Sunday, 21 December 2025: day of the Sun
- Sunrise
- 08:53
- Sunset
- 17:02
- Next sunrise
- 08:53
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Paris).
Day
- 1☉︎ Sun08:53 – 09:33
- 2♀︎ Venus09:33 – 10:14
- 3☿︎ Mercury10:14 – 10:55
- 4☽︎ Moon10:55 – 11:36
- 5♄︎ Saturn11:36 – 12:16
- 6♃︎ Jupiter12:16 – 12:57
- 7♂︎ Mars12:57 – 13:38
- 8☉︎ Sun13:38 – 14:19
- 9♀︎ Venus14:19 – 15:00
- 10☿︎ Mercury15:00 – 15:40
- 11☽︎ Moon15:40 – 16:21
- 12♄︎ Saturn16:21 – 17:02
Night
- 1♃︎ Jupiter17:02 – 18:21
- 2♂︎ Mars18:21 – 19:40
- 3☉︎ Sun19:40 – 21:00
- 4♀︎ Venus21:00 – 22:19
- 5☿︎ Mercury22:19 – 23:38
- 6☽︎ Moon23:38 – 00:57
- 7♄︎ Saturn00:57 – 02:17
- 8♃︎ Jupiter02:17 – 03:36
- 9♂︎ Mars03:36 – 04:55
- 10☉︎ Sun04:55 – 06:15
- 11♀︎ Venus06:15 – 07:34
- 12☿︎ Mercury07:34 – 08:53
Other cities · France
Questions
How are the planetary hours calculated in Le Havre?
On Sunday, 21 December 2025, the Sun rises at 08:53 and sets at 17:02: the day lasts 8h 09m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:53, lasts 15h 51m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
The Sun, from 08:53 to 09:33: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.