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 Friday, 28 August 2026: day of Venus
- Sunrise
- 07:01
- Sunset
- 20:41
- Next sunrise
- 07:03
A day hour lasts 1h 08m; a night hour, 52 min. Local time (Europe/Paris).
Day
- 1♀︎ Venus07:01 – 08:10
- 2☿︎ Mercury08:10 – 09:18
- 3☽︎ Moon09:18 – 10:26
- 4♄︎ Saturn10:26 – 11:35
- 5♃︎ Jupiter11:35 – 12:43
- 6♂︎ Mars12:43 – 13:51
- 7☉︎ Sun13:51 – 15:00
- 8♀︎ Venus15:00 – 16:08
- 9☿︎ Mercury16:08 – 17:16
- 10☽︎ Moon17:16 – 18:24
- 11♄︎ Saturn18:24 – 19:33
- 12♃︎ Jupiter19:33 – 20:41
Night
- 1♂︎ Mars20:41 – 21:33
- 2☉︎ Sun21:33 – 22:25
- 3♀︎ Venus22:25 – 23:17
- 4☿︎ Mercury23:17 – 00:08
- 5☽︎ Moon00:08 – 01:00
- 6♄︎ Saturn01:00 – 01:52
- 7♃︎ Jupiter01:52 – 02:44
- 8♂︎ Mars02:44 – 03:36
- 9☉︎ Sun03:36 – 04:27
- 10♀︎ Venus04:27 – 05:19
- 11☿︎ Mercury05:19 – 06:11
- 12☽︎ Moon06:11 – 07:03
Other cities · France
Questions
How are the planetary hours calculated in Boulogne-Billancourt?
On Friday, 28 August 2026, the Sun rises at 07:01 and sets at 20:41: the day lasts 13h 40m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 07:03, lasts 10h 22m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Venus, from 07:01 to 08:10: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.