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 Wednesday, 23 December 2026: day of Mercury
- Sunrise
- 08:42
- Sunset
- 17:10
- Next sunrise
- 08:42
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:42 – 09:24
- 2☽︎ Moon09:24 – 10:07
- 3♄︎ Saturn10:07 – 10:49
- 4♃︎ Jupiter10:49 – 11:31
- 5♂︎ Mars11:31 – 12:13
- 6☉︎ Sun12:13 – 12:56
- 7♀︎ Venus12:56 – 13:38
- 8☿︎ Mercury13:38 – 14:20
- 9☽︎ Moon14:20 – 15:03
- 10♄︎ Saturn15:03 – 15:45
- 11♃︎ Jupiter15:45 – 16:27
- 12♂︎ Mars16:27 – 17:10
Night
- 1☉︎ Sun17:10 – 18:27
- 2♀︎ Venus18:27 – 19:45
- 3☿︎ Mercury19:45 – 21:03
- 4☽︎ Moon21:03 – 22:20
- 5♄︎ Saturn22:20 – 23:38
- 6♃︎ Jupiter23:38 – 00:56
- 7♂︎ Mars00:56 – 02:14
- 8☉︎ Sun02:14 – 03:31
- 9♀︎ Venus03:31 – 04:49
- 10☿︎ Mercury04:49 – 06:07
- 11☽︎ Moon06:07 – 07:25
- 12♄︎ Saturn07:25 – 08:42
Other cities · France
Questions
How are the planetary hours calculated in Tours?
On Wednesday, 23 December 2026, the Sun rises at 08:42 and sets at 17:10: the day lasts 8h 27m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:42, lasts 15h 33m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mercury, from 08:42 to 09:24: 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.