Planetary hours
in Lyon.
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, 24 December 2025: day of Mercury
- Sunrise
- 08:19
- Sunset
- 17:00
- Next sunrise
- 08:20
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:19 – 09:03
- 2☽︎ Moon09:03 – 09:46
- 3♄︎ Saturn09:46 – 10:30
- 4♃︎ Jupiter10:30 – 11:13
- 5♂︎ Mars11:13 – 11:56
- 6☉︎ Sun11:56 – 12:40
- 7♀︎ Venus12:40 – 13:23
- 8☿︎ Mercury13:23 – 14:07
- 9☽︎ Moon14:07 – 14:50
- 10♄︎ Saturn14:50 – 15:33
- 11♃︎ Jupiter15:33 – 16:17
- 12♂︎ Mars16:17 – 17:00
Night
- 1☉︎ Sun17:00 – 18:17
- 2♀︎ Venus18:17 – 19:33
- 3☿︎ Mercury19:33 – 20:50
- 4☽︎ Moon20:50 – 22:07
- 5♄︎ Saturn22:07 – 23:23
- 6♃︎ Jupiter23:23 – 00:40
- 7♂︎ Mars00:40 – 01:57
- 8☉︎ Sun01:57 – 03:13
- 9♀︎ Venus03:13 – 04:30
- 10☿︎ Mercury04:30 – 05:47
- 11☽︎ Moon05:47 – 07:03
- 12♄︎ Saturn07:03 – 08:20
Other cities · France
Questions
How are the planetary hours calculated in Lyon?
On Wednesday, 24 December 2025, the Sun rises at 08:19 and sets at 17:00: the day lasts 8h 41m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:20, lasts 15h 20m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mercury, from 08:19 to 09:03: 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.