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, 20 January 2027: day of Mercury
- Sunrise
- 08:44
- Sunset
- 17:49
- Next sunrise
- 08:43
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:44 – 09:30
- 2☽︎ Moon09:30 – 10:15
- 3♄︎ Saturn10:15 – 11:01
- 4♃︎ Jupiter11:01 – 11:46
- 5♂︎ Mars11:46 – 12:31
- 6☉︎ Sun12:31 – 13:17
- 7♀︎ Venus13:17 – 14:02
- 8☿︎ Mercury14:02 – 14:48
- 9☽︎ Moon14:48 – 15:33
- 10♄︎ Saturn15:33 – 16:19
- 11♃︎ Jupiter16:19 – 17:04
- 12♂︎ Mars17:04 – 17:49
Night
- 1☉︎ Sun17:49 – 19:04
- 2♀︎ Venus19:04 – 20:18
- 3☿︎ Mercury20:18 – 21:33
- 4☽︎ Moon21:33 – 22:47
- 5♄︎ Saturn22:47 – 00:02
- 6♃︎ Jupiter00:02 – 01:16
- 7♂︎ Mars01:16 – 02:31
- 8☉︎ Sun02:31 – 03:45
- 9♀︎ Venus03:45 – 05:00
- 10☿︎ Mercury05:00 – 06:14
- 11☽︎ Moon06:14 – 07:29
- 12♄︎ Saturn07:29 – 08:43
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Wednesday, 20 January 2027, the Sun rises at 08:44 and sets at 17:49: the day lasts 9h 05m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:43, lasts 14h 54m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Mercury, from 08:44 to 09:30: 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.