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 Thursday, 18 September 2025: day of Jupiter
- Sunrise
- 07:38
- Sunset
- 20:02
- Next sunrise
- 07:40
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter07:38 – 08:40
- 2♂︎ Mars08:40 – 09:42
- 3☉︎ Sun09:42 – 10:44
- 4♀︎ Venus10:44 – 11:46
- 5☿︎ Mercury11:46 – 12:48
- 6☽︎ Moon12:48 – 13:50
- 7♄︎ Saturn13:50 – 14:52
- 8♃︎ Jupiter14:52 – 15:54
- 9♂︎ Mars15:54 – 16:56
- 10☉︎ Sun16:56 – 17:58
- 11♀︎ Venus17:58 – 19:00
- 12☿︎ Mercury19:00 – 20:02
Night
- 1☽︎ Moon20:02 – 21:00
- 2♄︎ Saturn21:00 – 21:59
- 3♃︎ Jupiter21:59 – 22:57
- 4♂︎ Mars22:57 – 23:55
- 5☉︎ Sun23:55 – 00:53
- 6♀︎ Venus00:53 – 01:51
- 7☿︎ Mercury01:51 – 02:49
- 8☽︎ Moon02:49 – 03:47
- 9♄︎ Saturn03:47 – 04:45
- 10♃︎ Jupiter04:45 – 05:43
- 11♂︎ Mars05:43 – 06:41
- 12☉︎ Sun06:41 – 07:40
Other cities · France
Questions
How are the planetary hours calculated in Tours?
On Thursday, 18 September 2025, the Sun rises at 07:38 and sets at 20:02: the day lasts 12h 24m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:40, lasts 11h 37m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Jupiter, from 07:38 to 08:40: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.