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 Friday, 4 September 2026: day of Venus
- Sunrise
- 07:29
- Sunset
- 20:40
- Next sunrise
- 07:30
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Europe/Paris).
Day
- 1♀︎ Venus07:29 – 08:35
- 2☿︎ Mercury08:35 – 09:40
- 3☽︎ Moon09:40 – 10:46
- 4♄︎ Saturn10:46 – 11:52
- 5♃︎ Jupiter11:52 – 12:58
- 6♂︎ Mars12:58 – 14:04
- 7☉︎ Sun14:04 – 15:10
- 8♀︎ Venus15:10 – 16:16
- 9☿︎ Mercury16:16 – 17:22
- 10☽︎ Moon17:22 – 18:28
- 11♄︎ Saturn18:28 – 19:34
- 12♃︎ Jupiter19:34 – 20:40
Night
- 1♂︎ Mars20:40 – 21:34
- 2☉︎ Sun21:34 – 22:28
- 3♀︎ Venus22:28 – 23:22
- 4☿︎ Mercury23:22 – 00:17
- 5☽︎ Moon00:17 – 01:11
- 6♄︎ Saturn01:11 – 02:05
- 7♃︎ Jupiter02:05 – 02:59
- 8♂︎ Mars02:59 – 03:53
- 9☉︎ Sun03:53 – 04:47
- 10♀︎ Venus04:47 – 05:42
- 11☿︎ Mercury05:42 – 06:36
- 12☽︎ Moon06:36 – 07:30
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Friday, 4 September 2026, the Sun rises at 07:29 and sets at 20:40: the day lasts 13h 11m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 07:30, lasts 10h 50m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Venus, from 07:29 to 08:35: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.