Planetary hours
in Nice.
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 Sunday, 21 December 2025: day of the Sun
- Sunrise
- 08:01
- Sunset
- 16:56
- Next sunrise
- 08:01
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Paris).
Day
- 1☉︎ Sun08:01 – 08:46
- 2♀︎ Venus08:46 – 09:30
- 3☿︎ Mercury09:30 – 10:15
- 4☽︎ Moon10:15 – 10:59
- 5♄︎ Saturn10:59 – 11:44
- 6♃︎ Jupiter11:44 – 12:29
- 7♂︎ Mars12:29 – 13:13
- 8☉︎ Sun13:13 – 13:58
- 9♀︎ Venus13:58 – 14:42
- 10☿︎ Mercury14:42 – 15:27
- 11☽︎ Moon15:27 – 16:12
- 12♄︎ Saturn16:12 – 16:56
Night
- 1♃︎ Jupiter16:56 – 18:12
- 2♂︎ Mars18:12 – 19:27
- 3☉︎ Sun19:27 – 20:43
- 4♀︎ Venus20:43 – 21:58
- 5☿︎ Mercury21:58 – 23:13
- 6☽︎ Moon23:13 – 00:29
- 7♄︎ Saturn00:29 – 01:44
- 8♃︎ Jupiter01:44 – 03:00
- 9♂︎ Mars03:00 – 04:15
- 10☉︎ Sun04:15 – 05:31
- 11♀︎ Venus05:31 – 06:46
- 12☿︎ Mercury06:46 – 08:01
Other cities · France
Questions
How are the planetary hours calculated in Nice?
On Sunday, 21 December 2025, the Sun rises at 08:01 and sets at 16:56: the day lasts 8h 55m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:01, lasts 15h 05m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
The Sun, from 08:01 to 08:46: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.