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, 17 June 2026: day of Mercury
- Sunrise
- 06:09
- Sunset
- 22:04
- Next sunrise
- 06:09
A day hour lasts 1h 20m; a night hour, 40 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury06:09 – 07:29
- 2☽︎ Moon07:29 – 08:48
- 3♄︎ Saturn08:48 – 10:08
- 4♃︎ Jupiter10:08 – 11:28
- 5♂︎ Mars11:28 – 12:47
- 6☉︎ Sun12:47 – 14:07
- 7♀︎ Venus14:07 – 15:26
- 8☿︎ Mercury15:26 – 16:46
- 9☽︎ Moon16:46 – 18:06
- 10♄︎ Saturn18:06 – 19:25
- 11♃︎ Jupiter19:25 – 20:45
- 12♂︎ Mars20:45 – 22:04
Night
- 1☉︎ Sun22:04 – 22:45
- 2♀︎ Venus22:45 – 23:25
- 3☿︎ Mercury23:25 – 00:06
- 4☽︎ Moon00:06 – 00:46
- 5♄︎ Saturn00:46 – 01:26
- 6♃︎ Jupiter01:26 – 02:07
- 7♂︎ Mars02:07 – 02:47
- 8☉︎ Sun02:47 – 03:28
- 9♀︎ Venus03:28 – 04:08
- 10☿︎ Mercury04:08 – 04:48
- 11☽︎ Moon04:48 – 05:29
- 12♄︎ Saturn05:29 – 06:09
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Wednesday, 17 June 2026, the Sun rises at 06:09 and sets at 22:04: the day lasts 15h 55m, that is twelve day hours of 1h 20m. The night, until the next sunrise at 06:09, lasts 8h 05m: twelve night hours of 40 min.
Which planet rules the first hour that day?
Mercury, from 06:09 to 07:29: 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.