Planetary hours
in La Rochelle.
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, 21 January 2026: day of Mercury
- Sunrise
- 08:38
- Sunset
- 17:53
- Next sunrise
- 08:37
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:38 – 09:25
- 2☽︎ Moon09:25 – 10:11
- 3♄︎ Saturn10:11 – 10:57
- 4♃︎ Jupiter10:57 – 11:43
- 5♂︎ Mars11:43 – 12:29
- 6☉︎ Sun12:29 – 13:16
- 7♀︎ Venus13:16 – 14:02
- 8☿︎ Mercury14:02 – 14:48
- 9☽︎ Moon14:48 – 15:34
- 10♄︎ Saturn15:34 – 16:20
- 11♃︎ Jupiter16:20 – 17:07
- 12♂︎ Mars17:07 – 17:53
Night
- 1☉︎ Sun17:53 – 19:07
- 2♀︎ Venus19:07 – 20:20
- 3☿︎ Mercury20:20 – 21:34
- 4☽︎ Moon21:34 – 22:48
- 5♄︎ Saturn22:48 – 00:01
- 6♃︎ Jupiter00:01 – 01:15
- 7♂︎ Mars01:15 – 02:29
- 8☉︎ Sun02:29 – 03:43
- 9♀︎ Venus03:43 – 04:56
- 10☿︎ Mercury04:56 – 06:10
- 11☽︎ Moon06:10 – 07:24
- 12♄︎ Saturn07:24 – 08:37
Other cities · France
Questions
How are the planetary hours calculated in La Rochelle?
On Wednesday, 21 January 2026, the Sun rises at 08:38 and sets at 17:53: the day lasts 9h 15m, that is twelve day hours of 46 min. The night, until the next sunrise at 08:37, lasts 14h 45m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Mercury, from 08:38 to 09:25: 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.