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 Wednesday, 28 January 2026: day of Mercury
- Sunrise
- 08:36
- Sunset
- 18:02
- Next sunrise
- 08:35
A day hour lasts 47 min; a night hour, 1h 13m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:36 – 09:23
- 2☽︎ Moon09:23 – 10:10
- 3♄︎ Saturn10:10 – 10:58
- 4♃︎ Jupiter10:58 – 11:45
- 5♂︎ Mars11:45 – 12:32
- 6☉︎ Sun12:32 – 13:19
- 7♀︎ Venus13:19 – 14:06
- 8☿︎ Mercury14:06 – 14:53
- 9☽︎ Moon14:53 – 15:40
- 10♄︎ Saturn15:40 – 16:27
- 11♃︎ Jupiter16:27 – 17:14
- 12♂︎ Mars17:14 – 18:02
Night
- 1☉︎ Sun18:02 – 19:14
- 2♀︎ Venus19:14 – 20:27
- 3☿︎ Mercury20:27 – 21:40
- 4☽︎ Moon21:40 – 22:53
- 5♄︎ Saturn22:53 – 00:06
- 6♃︎ Jupiter00:06 – 01:18
- 7♂︎ Mars01:18 – 02:31
- 8☉︎ Sun02:31 – 03:44
- 9♀︎ Venus03:44 – 04:57
- 10☿︎ Mercury04:57 – 06:09
- 11☽︎ Moon06:09 – 07:22
- 12♄︎ Saturn07:22 – 08:35
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Wednesday, 28 January 2026, the Sun rises at 08:36 and sets at 18:02: the day lasts 9h 25m, that is twelve day hours of 47 min. The night, until the next sunrise at 08:35, lasts 14h 33m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Mercury, from 08:36 to 09:23: 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.