Planetary hours
in Roubaix.
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, 9 December 2026: day of Mercury
- Sunrise
- 08:36
- Sunset
- 16:42
- Next sunrise
- 08:37
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:36 – 09:17
- 2☽︎ Moon09:17 – 09:57
- 3♄︎ Saturn09:57 – 10:38
- 4♃︎ Jupiter10:38 – 11:18
- 5♂︎ Mars11:18 – 11:59
- 6☉︎ Sun11:59 – 12:39
- 7♀︎ Venus12:39 – 13:20
- 8☿︎ Mercury13:20 – 14:00
- 9☽︎ Moon14:00 – 14:40
- 10♄︎ Saturn14:40 – 15:21
- 11♃︎ Jupiter15:21 – 16:01
- 12♂︎ Mars16:01 – 16:42
Night
- 1☉︎ Sun16:42 – 18:01
- 2♀︎ Venus18:01 – 19:21
- 3☿︎ Mercury19:21 – 20:41
- 4☽︎ Moon20:41 – 22:00
- 5♄︎ Saturn22:00 – 23:20
- 6♃︎ Jupiter23:20 – 00:40
- 7♂︎ Mars00:40 – 01:59
- 8☉︎ Sun01:59 – 03:19
- 9♀︎ Venus03:19 – 04:38
- 10☿︎ Mercury04:38 – 05:58
- 11☽︎ Moon05:58 – 07:18
- 12♄︎ Saturn07:18 – 08:37
Other cities · France
Questions
How are the planetary hours calculated in Roubaix?
On Wednesday, 9 December 2026, the Sun rises at 08:36 and sets at 16:42: the day lasts 8h 06m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:37, lasts 15h 55m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Mercury, from 08:36 to 09:17: 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.