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 Tuesday, 20 January 2026: day of Mars
- Sunrise
- 08:38
- Sunset
- 17:18
- Next sunrise
- 08:37
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:38 – 09:21
- 2☉︎ Sun09:21 – 10:04
- 3♀︎ Venus10:04 – 10:48
- 4☿︎ Mercury10:48 – 11:31
- 5☽︎ Moon11:31 – 12:15
- 6♄︎ Saturn12:15 – 12:58
- 7♃︎ Jupiter12:58 – 13:41
- 8♂︎ Mars13:41 – 14:25
- 9☉︎ Sun14:25 – 15:08
- 10♀︎ Venus15:08 – 15:52
- 11☿︎ Mercury15:52 – 16:35
- 12☽︎ Moon16:35 – 17:18
Night
- 1♄︎ Saturn17:18 – 18:35
- 2♃︎ Jupiter18:35 – 19:51
- 3♂︎ Mars19:51 – 21:08
- 4☉︎ Sun21:08 – 22:25
- 5♀︎ Venus22:25 – 23:41
- 6☿︎ Mercury23:41 – 00:58
- 7☽︎ Moon00:58 – 02:14
- 8♄︎ Saturn02:14 – 03:31
- 9♃︎ Jupiter03:31 – 04:47
- 10♂︎ Mars04:47 – 06:04
- 11☉︎ Sun06:04 – 07:20
- 12♀︎ Venus07:20 – 08:37
Other cities · France
Questions
How are the planetary hours calculated in Roubaix?
On Tuesday, 20 January 2026, the Sun rises at 08:38 and sets at 17:18: the day lasts 8h 41m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:37, lasts 15h 18m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mars, from 08:38 to 09:21: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.