Planetary hours
in Tours.
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, 27 December 2025: day of Saturn
- Sunrise
- 08:43
- Sunset
- 17:12
- Next sunrise
- 08:44
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:43 – 09:26
- 2♃︎ Jupiter09:26 – 10:08
- 3♂︎ Mars10:08 – 10:51
- 4☉︎ Sun10:51 – 11:33
- 5♀︎ Venus11:33 – 12:15
- 6☿︎ Mercury12:15 – 12:58
- 7☽︎ Moon12:58 – 13:40
- 8♄︎ Saturn13:40 – 14:23
- 9♃︎ Jupiter14:23 – 15:05
- 10♂︎ Mars15:05 – 15:48
- 11☉︎ Sun15:48 – 16:30
- 12♀︎ Venus16:30 – 17:12
Night
- 1☿︎ Mercury17:12 – 18:30
- 2☽︎ Moon18:30 – 19:48
- 3♄︎ Saturn19:48 – 21:05
- 4♃︎ Jupiter21:05 – 22:23
- 5♂︎ Mars22:23 – 23:40
- 6☉︎ Sun23:40 – 00:58
- 7♀︎ Venus00:58 – 02:16
- 8☿︎ Mercury02:16 – 03:33
- 9☽︎ Moon03:33 – 04:51
- 10♄︎ Saturn04:51 – 06:08
- 11♃︎ Jupiter06:08 – 07:26
- 12♂︎ Mars07:26 – 08:44
Other cities · France
Questions
How are the planetary hours calculated in Tours?
On Saturday, 27 December 2025, the Sun rises at 08:43 and sets at 17:12: the day lasts 8h 29m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:44, lasts 15h 31m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Saturn, from 08:43 to 09:26: 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.