Planetary hours
in Le Mans.
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, 21 January 2026: day of Mercury
- Sunrise
- 08:39
- Sunset
- 17:42
- Next sunrise
- 08:38
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:39 – 09:24
- 2☽︎ Moon09:24 – 10:09
- 3♄︎ Saturn10:09 – 10:55
- 4♃︎ Jupiter10:55 – 11:40
- 5♂︎ Mars11:40 – 12:25
- 6☉︎ Sun12:25 – 13:10
- 7♀︎ Venus13:10 – 13:55
- 8☿︎ Mercury13:55 – 14:41
- 9☽︎ Moon14:41 – 15:26
- 10♄︎ Saturn15:26 – 16:11
- 11♃︎ Jupiter16:11 – 16:56
- 12♂︎ Mars16:56 – 17:42
Night
- 1☉︎ Sun17:42 – 18:56
- 2♀︎ Venus18:56 – 20:11
- 3☿︎ Mercury20:11 – 21:26
- 4☽︎ Moon21:26 – 22:40
- 5♄︎ Saturn22:40 – 23:55
- 6♃︎ Jupiter23:55 – 01:10
- 7♂︎ Mars01:10 – 02:24
- 8☉︎ Sun02:24 – 03:39
- 9♀︎ Venus03:39 – 04:54
- 10☿︎ Mercury04:54 – 06:09
- 11☽︎ Moon06:09 – 07:23
- 12♄︎ Saturn07:23 – 08:38
Other cities · France
Questions
How are the planetary hours calculated in Le Mans?
On Wednesday, 21 January 2026, the Sun rises at 08:39 and sets at 17:42: the day lasts 9h 03m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:38, lasts 14h 56m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Mercury, from 08:39 to 09:24: 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.