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, 31 December 2025: day of Mercury
- Sunrise
- 08:44
- Sunset
- 17:16
- Next sunrise
- 08:44
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:44 – 09:27
- 2☽︎ Moon09:27 – 10:09
- 3♄︎ Saturn10:09 – 10:52
- 4♃︎ Jupiter10:52 – 11:35
- 5♂︎ Mars11:35 – 12:17
- 6☉︎ Sun12:17 – 13:00
- 7♀︎ Venus13:00 – 13:43
- 8☿︎ Mercury13:43 – 14:25
- 9☽︎ Moon14:25 – 15:08
- 10♄︎ Saturn15:08 – 15:50
- 11♃︎ Jupiter15:50 – 16:33
- 12♂︎ Mars16:33 – 17:16
Night
- 1☉︎ Sun17:16 – 18:33
- 2♀︎ Venus18:33 – 19:50
- 3☿︎ Mercury19:50 – 21:08
- 4☽︎ Moon21:08 – 22:25
- 5♄︎ Saturn22:25 – 23:43
- 6♃︎ Jupiter23:43 – 01:00
- 7♂︎ Mars01:00 – 02:17
- 8☉︎ Sun02:17 – 03:35
- 9♀︎ Venus03:35 – 04:52
- 10☿︎ Mercury04:52 – 06:09
- 11☽︎ Moon06:09 – 07:27
- 12♄︎ Saturn07:27 – 08:44
Other cities · France
Questions
How are the planetary hours calculated in Tours?
On Wednesday, 31 December 2025, the Sun rises at 08:44 and sets at 17:16: the day lasts 8h 32m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:44, lasts 15h 28m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mercury, from 08:44 to 09:27: 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.