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 Wednesday, 4 November 2026: day of Mercury
- Sunrise
- 07:42
- Sunset
- 17:26
- Next sunrise
- 07:44
A day hour lasts 49 min; a night hour, 1h 12m. Local time (Europe/Paris).
Right now☿︎ Hour of Mercury — hour 8 of the day, until 14:11
Day
- 1☿︎ Mercury07:42 – 08:31
- 2☽︎ Moon08:31 – 09:19
- 3♄︎ Saturn09:19 – 10:08
- 4♃︎ Jupiter10:08 – 10:57
- 5♂︎ Mars10:57 – 11:45
- 6☉︎ Sun11:45 – 12:34
- 7♀︎ Venus12:34 – 13:22
- 8☿︎ Mercury13:22 – 14:11
- 9☽︎ Moon14:11 – 15:00
- 10♄︎ Saturn15:00 – 15:48
- 11♃︎ Jupiter15:48 – 16:37
- 12♂︎ Mars16:37 – 17:26
Night
- 1☉︎ Sun17:26 – 18:37
- 2♀︎ Venus18:37 – 19:49
- 3☿︎ Mercury19:49 – 21:00
- 4☽︎ Moon21:00 – 22:12
- 5♄︎ Saturn22:12 – 23:23
- 6♃︎ Jupiter23:23 – 00:35
- 7♂︎ Mars00:35 – 01:46
- 8☉︎ Sun01:46 – 02:58
- 9♀︎ Venus02:58 – 04:09
- 10☿︎ Mercury04:09 – 05:21
- 11☽︎ Moon05:21 – 06:32
- 12♄︎ Saturn06:32 – 07:44
Other cities · France
Questions
How are the planetary hours calculated in Boulogne-Billancourt?
On Wednesday, 4 November 2026, the Sun rises at 07:42 and sets at 17:26: the day lasts 9h 44m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:44, lasts 14h 18m: twelve night hours of 1h 12m.
Which planet rules the first hour that day?
Mercury, from 07:42 to 08:31: 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.