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, 25 August 2026: day of Mars
- Sunrise
- 07:15
- Sunset
- 20:59
- Next sunrise
- 07:17
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:15 – 08:24
- 2☉︎ Sun08:24 – 09:33
- 3♀︎ Venus09:33 – 10:41
- 4☿︎ Mercury10:41 – 11:50
- 5☽︎ Moon11:50 – 12:59
- 6♄︎ Saturn12:59 – 14:07
- 7♃︎ Jupiter14:07 – 15:16
- 8♂︎ Mars15:16 – 16:25
- 9☉︎ Sun16:25 – 17:33
- 10♀︎ Venus17:33 – 18:42
- 11☿︎ Mercury18:42 – 19:51
- 12☽︎ Moon19:51 – 20:59
Night
- 1♄︎ Saturn20:59 – 21:51
- 2♃︎ Jupiter21:51 – 22:42
- 3♂︎ Mars22:42 – 23:34
- 4☉︎ Sun23:34 – 00:25
- 5♀︎ Venus00:25 – 01:17
- 6☿︎ Mercury01:17 – 02:08
- 7☽︎ Moon02:08 – 02:59
- 8♄︎ Saturn02:59 – 03:51
- 9♃︎ Jupiter03:51 – 04:42
- 10♂︎ Mars04:42 – 05:34
- 11☉︎ Sun05:34 – 06:25
- 12♀︎ Venus06:25 – 07:17
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Tuesday, 25 August 2026, the Sun rises at 07:15 and sets at 20:59: the day lasts 13h 44m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 07:17, lasts 10h 17m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Mars, from 07:15 to 08:24: 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.