Planetary hours
in Montreuil.
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, 21 October 2025: day of Mars
- Sunrise
- 08:20
- Sunset
- 18:48
- Next sunrise
- 08:21
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:20 – 09:12
- 2☉︎ Sun09:12 – 10:04
- 3♀︎ Venus10:04 – 10:57
- 4☿︎ Mercury10:57 – 11:49
- 5☽︎ Moon11:49 – 12:42
- 6♄︎ Saturn12:42 – 13:34
- 7♃︎ Jupiter13:34 – 14:26
- 8♂︎ Mars14:26 – 15:19
- 9☉︎ Sun15:19 – 16:11
- 10♀︎ Venus16:11 – 17:04
- 11☿︎ Mercury17:04 – 17:56
- 12☽︎ Moon17:56 – 18:48
Night
- 1♄︎ Saturn18:48 – 19:56
- 2♃︎ Jupiter19:56 – 21:04
- 3♂︎ Mars21:04 – 22:12
- 4☉︎ Sun22:12 – 23:19
- 5♀︎ Venus23:19 – 00:27
- 6☿︎ Mercury00:27 – 01:35
- 7☽︎ Moon01:35 – 02:42
- 8♄︎ Saturn02:42 – 03:50
- 9♃︎ Jupiter03:50 – 04:58
- 10♂︎ Mars04:58 – 06:06
- 11☉︎ Sun06:06 – 07:13
- 12♀︎ Venus07:13 – 08:21
Other cities · France
Questions
How are the planetary hours calculated in Montreuil?
On Tuesday, 21 October 2025, the Sun rises at 08:20 and sets at 18:48: the day lasts 10h 29m, that is twelve day hours of 52 min. The night, until the next sunrise at 08:21, lasts 13h 33m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mars, from 08:20 to 09:12: 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.