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, 13 January 2027: day of Mercury
- Sunrise
- 08:49
- Sunset
- 17:40
- Next sunrise
- 08:49
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:49 – 09:33
- 2☽︎ Moon09:33 – 10:18
- 3♄︎ Saturn10:18 – 11:02
- 4♃︎ Jupiter11:02 – 11:46
- 5♂︎ Mars11:46 – 12:30
- 6☉︎ Sun12:30 – 13:14
- 7♀︎ Venus13:14 – 13:59
- 8☿︎ Mercury13:59 – 14:43
- 9☽︎ Moon14:43 – 15:27
- 10♄︎ Saturn15:27 – 16:11
- 11♃︎ Jupiter16:11 – 16:56
- 12♂︎ Mars16:56 – 17:40
Night
- 1☉︎ Sun17:40 – 18:55
- 2♀︎ Venus18:55 – 20:11
- 3☿︎ Mercury20:11 – 21:27
- 4☽︎ Moon21:27 – 22:43
- 5♄︎ Saturn22:43 – 23:58
- 6♃︎ Jupiter23:58 – 01:14
- 7♂︎ Mars01:14 – 02:30
- 8☉︎ Sun02:30 – 03:46
- 9♀︎ Venus03:46 – 05:01
- 10☿︎ Mercury05:01 – 06:17
- 11☽︎ Moon06:17 – 07:33
- 12♄︎ Saturn07:33 – 08:49
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Wednesday, 13 January 2027, the Sun rises at 08:49 and sets at 17:40: the day lasts 8h 51m, that is twelve day hours of 44 min. The night, until the next sunrise at 08:49, lasts 15h 09m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Mercury, from 08:49 to 09:33: 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.