Planetary hours
in Saint-Denis.
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, 16 September 2026: day of Mercury
- Sunrise
- 07:28
- Sunset
- 20:01
- Next sunrise
- 07:29
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury07:28 – 08:31
- 2☽︎ Moon08:31 – 09:33
- 3♄︎ Saturn09:33 – 10:36
- 4♃︎ Jupiter10:36 – 11:39
- 5♂︎ Mars11:39 – 12:42
- 6☉︎ Sun12:42 – 13:44
- 7♀︎ Venus13:44 – 14:47
- 8☿︎ Mercury14:47 – 15:50
- 9☽︎ Moon15:50 – 16:53
- 10♄︎ Saturn16:53 – 17:56
- 11♃︎ Jupiter17:56 – 18:58
- 12♂︎ Mars18:58 – 20:01
Night
- 1☉︎ Sun20:01 – 20:58
- 2♀︎ Venus20:58 – 21:56
- 3☿︎ Mercury21:56 – 22:53
- 4☽︎ Moon22:53 – 23:50
- 5♄︎ Saturn23:50 – 00:48
- 6♃︎ Jupiter00:48 – 01:45
- 7♂︎ Mars01:45 – 02:43
- 8☉︎ Sun02:43 – 03:40
- 9♀︎ Venus03:40 – 04:37
- 10☿︎ Mercury04:37 – 05:35
- 11☽︎ Moon05:35 – 06:32
- 12♄︎ Saturn06:32 – 07:29
Other cities · France
Questions
How are the planetary hours calculated in Saint-Denis?
On Wednesday, 16 September 2026, the Sun rises at 07:28 and sets at 20:01: the day lasts 12h 33m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 07:29, lasts 11h 28m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Mercury, from 07:28 to 08:31: 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.