Planetary hours
in Rouen.
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, 15 October 2025: day of Mercury
- Sunrise
- 08:16
- Sunset
- 19:04
- Next sunrise
- 08:18
A day hour lasts 54 min; a night hour, 1h 06m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:16 – 09:10
- 2☽︎ Moon09:10 – 10:04
- 3♄︎ Saturn10:04 – 10:58
- 4♃︎ Jupiter10:58 – 11:52
- 5♂︎ Mars11:52 – 12:46
- 6☉︎ Sun12:46 – 13:40
- 7♀︎ Venus13:40 – 14:34
- 8☿︎ Mercury14:34 – 15:28
- 9☽︎ Moon15:28 – 16:22
- 10♄︎ Saturn16:22 – 17:16
- 11♃︎ Jupiter17:16 – 18:10
- 12♂︎ Mars18:10 – 19:04
Night
- 1☉︎ Sun19:04 – 20:11
- 2♀︎ Venus20:11 – 21:17
- 3☿︎ Mercury21:17 – 22:23
- 4☽︎ Moon22:23 – 23:29
- 5♄︎ Saturn23:29 – 00:35
- 6♃︎ Jupiter00:35 – 01:41
- 7♂︎ Mars01:41 – 02:47
- 8☉︎ Sun02:47 – 03:53
- 9♀︎ Venus03:53 – 05:00
- 10☿︎ Mercury05:00 – 06:06
- 11☽︎ Moon06:06 – 07:12
- 12♄︎ Saturn07:12 – 08:18
Other cities · France
Questions
How are the planetary hours calculated in Rouen?
On Wednesday, 15 October 2025, the Sun rises at 08:16 and sets at 19:04: the day lasts 10h 48m, that is twelve day hours of 54 min. The night, until the next sunrise at 08:18, lasts 13h 14m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Mercury, from 08:16 to 09:10: 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.