Planetary hours
in Nantes.
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 Tuesday, 27 May 2025: day of Mars
- Sunrise
- 06:17
- Sunset
- 21:49
- Next sunrise
- 06:16
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars06:17 – 07:35
- 2☉︎ Sun07:35 – 08:53
- 3♀︎ Venus08:53 – 10:10
- 4☿︎ Mercury10:10 – 11:28
- 5☽︎ Moon11:28 – 12:46
- 6♄︎ Saturn12:46 – 14:03
- 7♃︎ Jupiter14:03 – 15:21
- 8♂︎ Mars15:21 – 16:39
- 9☉︎ Sun16:39 – 17:56
- 10♀︎ Venus17:56 – 19:14
- 11☿︎ Mercury19:14 – 20:32
- 12☽︎ Moon20:32 – 21:49
Night
- 1♄︎ Saturn21:49 – 22:31
- 2♃︎ Jupiter22:31 – 23:14
- 3♂︎ Mars23:14 – 23:56
- 4☉︎ Sun23:56 – 00:38
- 5♀︎ Venus00:38 – 01:21
- 6☿︎ Mercury01:21 – 02:03
- 7☽︎ Moon02:03 – 02:45
- 8♄︎ Saturn02:45 – 03:27
- 9♃︎ Jupiter03:27 – 04:10
- 10♂︎ Mars04:10 – 04:52
- 11☉︎ Sun04:52 – 05:34
- 12♀︎ Venus05:34 – 06:16
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Tuesday, 27 May 2025, the Sun rises at 06:17 and sets at 21:49: the day lasts 15h 32m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 06:16, lasts 8h 27m: twelve night hours of 42 min.
Which planet rules the first hour that day?
Mars, from 06:17 to 07:35: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.