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, 16 December 2026: day of Mercury
- Sunrise
- 08:38
- Sunset
- 17:07
- Next sunrise
- 08:39
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:38 – 09:20
- 2☽︎ Moon09:20 – 10:03
- 3♄︎ Saturn10:03 – 10:45
- 4♃︎ Jupiter10:45 – 11:27
- 5♂︎ Mars11:27 – 12:10
- 6☉︎ Sun12:10 – 12:52
- 7♀︎ Venus12:52 – 13:35
- 8☿︎ Mercury13:35 – 14:17
- 9☽︎ Moon14:17 – 14:59
- 10♄︎ Saturn14:59 – 15:42
- 11♃︎ Jupiter15:42 – 16:24
- 12♂︎ Mars16:24 – 17:07
Night
- 1☉︎ Sun17:07 – 18:24
- 2♀︎ Venus18:24 – 19:42
- 3☿︎ Mercury19:42 – 21:00
- 4☽︎ Moon21:00 – 22:17
- 5♄︎ Saturn22:17 – 23:35
- 6♃︎ Jupiter23:35 – 00:53
- 7♂︎ Mars00:53 – 02:10
- 8☉︎ Sun02:10 – 03:28
- 9♀︎ Venus03:28 – 04:46
- 10☿︎ Mercury04:46 – 06:03
- 11☽︎ Moon06:03 – 07:21
- 12♄︎ Saturn07:21 – 08:39
Other cities · France
Questions
How are the planetary hours calculated in Tours?
On Wednesday, 16 December 2026, the Sun rises at 08:38 and sets at 17:07: the day lasts 8h 29m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:39, lasts 15h 32m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mercury, from 08:38 to 09:20: 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.