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, 6 January 2026: day of Mars
- Sunrise
- 08:52
- Sunset
- 17:32
- Next sunrise
- 08:52
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:52 – 09:35
- 2☉︎ Sun09:35 – 10:18
- 3♀︎ Venus10:18 – 11:02
- 4☿︎ Mercury11:02 – 11:45
- 5☽︎ Moon11:45 – 12:28
- 6♄︎ Saturn12:28 – 13:12
- 7♃︎ Jupiter13:12 – 13:55
- 8♂︎ Mars13:55 – 14:38
- 9☉︎ Sun14:38 – 15:22
- 10♀︎ Venus15:22 – 16:05
- 11☿︎ Mercury16:05 – 16:48
- 12☽︎ Moon16:48 – 17:32
Night
- 1♄︎ Saturn17:32 – 18:48
- 2♃︎ Jupiter18:48 – 20:05
- 3♂︎ Mars20:05 – 21:22
- 4☉︎ Sun21:22 – 22:38
- 5♀︎ Venus22:38 – 23:55
- 6☿︎ Mercury23:55 – 01:12
- 7☽︎ Moon01:12 – 02:28
- 8♄︎ Saturn02:28 – 03:45
- 9♃︎ Jupiter03:45 – 05:02
- 10♂︎ Mars05:02 – 06:18
- 11☉︎ Sun06:18 – 07:35
- 12♀︎ Venus07:35 – 08:52
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Tuesday, 6 January 2026, the Sun rises at 08:52 and sets at 17:32: the day lasts 8h 40m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:52, lasts 15h 20m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mars, from 08:52 to 09:35: 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.