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, 22 April 2026: day of Mercury
- Sunrise
- 07:05
- Sunset
- 21:04
- Next sunrise
- 07:03
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury07:05 – 08:15
- 2☽︎ Moon08:15 – 09:25
- 3♄︎ Saturn09:25 – 10:35
- 4♃︎ Jupiter10:35 – 11:45
- 5♂︎ Mars11:45 – 12:55
- 6☉︎ Sun12:55 – 14:05
- 7♀︎ Venus14:05 – 15:15
- 8☿︎ Mercury15:15 – 16:25
- 9☽︎ Moon16:25 – 17:34
- 10♄︎ Saturn17:34 – 18:44
- 11♃︎ Jupiter18:44 – 19:54
- 12♂︎ Mars19:54 – 21:04
Night
- 1☉︎ Sun21:04 – 21:54
- 2♀︎ Venus21:54 – 22:44
- 3☿︎ Mercury22:44 – 23:34
- 4☽︎ Moon23:34 – 00:24
- 5♄︎ Saturn00:24 – 01:14
- 6♃︎ Jupiter01:14 – 02:04
- 7♂︎ Mars02:04 – 02:54
- 8☉︎ Sun02:54 – 03:44
- 9♀︎ Venus03:44 – 04:34
- 10☿︎ Mercury04:34 – 05:23
- 11☽︎ Moon05:23 – 06:13
- 12♄︎ Saturn06:13 – 07:03
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Wednesday, 22 April 2026, the Sun rises at 07:05 and sets at 21:04: the day lasts 13h 59m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 07:03, lasts 9h 59m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Mercury, from 07:05 to 08:15: 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.