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, 15 July 2026: day of Mercury
- Sunrise
- 06:25
- Sunset
- 21:58
- Next sunrise
- 06:26
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury06:25 – 07:43
- 2☽︎ Moon07:43 – 09:00
- 3♄︎ Saturn09:00 – 10:18
- 4♃︎ Jupiter10:18 – 11:36
- 5♂︎ Mars11:36 – 12:54
- 6☉︎ Sun12:54 – 14:11
- 7♀︎ Venus14:11 – 15:29
- 8☿︎ Mercury15:29 – 16:47
- 9☽︎ Moon16:47 – 18:05
- 10♄︎ Saturn18:05 – 19:22
- 11♃︎ Jupiter19:22 – 20:40
- 12♂︎ Mars20:40 – 21:58
Night
- 1☉︎ Sun21:58 – 22:40
- 2♀︎ Venus22:40 – 23:23
- 3☿︎ Mercury23:23 – 00:05
- 4☽︎ Moon00:05 – 00:47
- 5♄︎ Saturn00:47 – 01:30
- 6♃︎ Jupiter01:30 – 02:12
- 7♂︎ Mars02:12 – 02:54
- 8☉︎ Sun02:54 – 03:37
- 9♀︎ Venus03:37 – 04:19
- 10☿︎ Mercury04:19 – 05:01
- 11☽︎ Moon05:01 – 05:44
- 12♄︎ Saturn05:44 – 06:26
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Wednesday, 15 July 2026, the Sun rises at 06:25 and sets at 21:58: the day lasts 15h 33m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 06:26, lasts 8h 28m: twelve night hours of 42 min.
Which planet rules the first hour that day?
Mercury, from 06:25 to 07:43: 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.