Planetary hours
in Saint-Quentin-en-Yvelines.
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 April 2026: day of Mars
- Sunrise
- 06:49
- Sunset
- 20:52
- Next sunrise
- 06:48
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars06:49 – 08:00
- 2☉︎ Sun08:00 – 09:10
- 3♀︎ Venus09:10 – 10:20
- 4☿︎ Mercury10:20 – 11:30
- 5☽︎ Moon11:30 – 12:40
- 6♄︎ Saturn12:40 – 13:51
- 7♃︎ Jupiter13:51 – 15:01
- 8♂︎ Mars15:01 – 16:11
- 9☉︎ Sun16:11 – 17:21
- 10♀︎ Venus17:21 – 18:31
- 11☿︎ Mercury18:31 – 19:42
- 12☽︎ Moon19:42 – 20:52
Night
- 1♄︎ Saturn20:52 – 21:41
- 2♃︎ Jupiter21:41 – 22:31
- 3♂︎ Mars22:31 – 23:21
- 4☉︎ Sun23:21 – 00:10
- 5♀︎ Venus00:10 – 01:00
- 6☿︎ Mercury01:00 – 01:50
- 7☽︎ Moon01:50 – 02:39
- 8♄︎ Saturn02:39 – 03:29
- 9♃︎ Jupiter03:29 – 04:19
- 10♂︎ Mars04:19 – 05:08
- 11☉︎ Sun05:08 – 05:58
- 12♀︎ Venus05:58 – 06:48
Other cities · France
Questions
How are the planetary hours calculated in Saint-Quentin-en-Yvelines?
On Tuesday, 21 April 2026, the Sun rises at 06:49 and sets at 20:52: the day lasts 14h 02m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 06:48, lasts 9h 56m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Mars, from 06:49 to 08:00: 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.