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, 18 February 2026: day of Mercury
- Sunrise
- 07:57
- Sunset
- 18:25
- Next sunrise
- 07:55
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury07:57 – 08:49
- 2☽︎ Moon08:49 – 09:42
- 3♄︎ Saturn09:42 – 10:34
- 4♃︎ Jupiter10:34 – 11:26
- 5♂︎ Mars11:26 – 12:19
- 6☉︎ Sun12:19 – 13:11
- 7♀︎ Venus13:11 – 14:03
- 8☿︎ Mercury14:03 – 14:56
- 9☽︎ Moon14:56 – 15:48
- 10♄︎ Saturn15:48 – 16:40
- 11♃︎ Jupiter16:40 – 17:33
- 12♂︎ Mars17:33 – 18:25
Night
- 1☉︎ Sun18:25 – 19:32
- 2♀︎ Venus19:32 – 20:40
- 3☿︎ Mercury20:40 – 21:47
- 4☽︎ Moon21:47 – 22:55
- 5♄︎ Saturn22:55 – 00:03
- 6♃︎ Jupiter00:03 – 01:10
- 7♂︎ Mars01:10 – 02:18
- 8☉︎ Sun02:18 – 03:25
- 9♀︎ Venus03:25 – 04:33
- 10☿︎ Mercury04:33 – 05:40
- 11☽︎ Moon05:40 – 06:48
- 12♄︎ Saturn06:48 – 07:55
Other cities · France
Questions
How are the planetary hours calculated in Tours?
On Wednesday, 18 February 2026, the Sun rises at 07:57 and sets at 18:25: the day lasts 10h 28m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:55, lasts 13h 30m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mercury, from 07:57 to 08:49: 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.