Planetary hours
in Boulogne-Billancourt.
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 Saturday, 3 October 2026: day of Saturn
- Sunrise
- 07:53
- Sunset
- 19:25
- Next sunrise
- 07:54
A day hour lasts 58 min; a night hour, 1h 02m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn07:53 – 08:51
- 2♃︎ Jupiter08:51 – 09:48
- 3♂︎ Mars09:48 – 10:46
- 4☉︎ Sun10:46 – 11:44
- 5♀︎ Venus11:44 – 12:41
- 6☿︎ Mercury12:41 – 13:39
- 7☽︎ Moon13:39 – 14:37
- 8♄︎ Saturn14:37 – 15:35
- 9♃︎ Jupiter15:35 – 16:32
- 10♂︎ Mars16:32 – 17:30
- 11☉︎ Sun17:30 – 18:28
- 12♀︎ Venus18:28 – 19:25
Night
- 1☿︎ Mercury19:25 – 20:28
- 2☽︎ Moon20:28 – 21:30
- 3♄︎ Saturn21:30 – 22:33
- 4♃︎ Jupiter22:33 – 23:35
- 5♂︎ Mars23:35 – 00:37
- 6☉︎ Sun00:37 – 01:40
- 7♀︎ Venus01:40 – 02:42
- 8☿︎ Mercury02:42 – 03:45
- 9☽︎ Moon03:45 – 04:47
- 10♄︎ Saturn04:47 – 05:49
- 11♃︎ Jupiter05:49 – 06:52
- 12♂︎ Mars06:52 – 07:54
Other cities · France
Questions
How are the planetary hours calculated in Boulogne-Billancourt?
On Saturday, 3 October 2026, the Sun rises at 07:53 and sets at 19:25: the day lasts 11h 33m, that is twelve day hours of 58 min. The night, until the next sunrise at 07:54, lasts 12h 29m: twelve night hours of 1h 02m.
Which planet rules the first hour that day?
Saturn, from 07:53 to 08:51: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.