Planetary hours
in Cluj-Napoca.
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 Thursday, 11 December 2025: day of Jupiter
- Sunrise
- 08:00
- Sunset
- 16:37
- Next sunrise
- 08:01
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Bucharest).
Day
- 1♃︎ Jupiter08:00 – 08:43
- 2♂︎ Mars08:43 – 09:26
- 3☉︎ Sun09:26 – 10:09
- 4♀︎ Venus10:09 – 10:52
- 5☿︎ Mercury10:52 – 11:35
- 6☽︎ Moon11:35 – 12:18
- 7♄︎ Saturn12:18 – 13:01
- 8♃︎ Jupiter13:01 – 13:44
- 9♂︎ Mars13:44 – 14:28
- 10☉︎ Sun14:28 – 15:11
- 11♀︎ Venus15:11 – 15:54
- 12☿︎ Mercury15:54 – 16:37
Night
- 1☽︎ Moon16:37 – 17:54
- 2♄︎ Saturn17:54 – 19:11
- 3♃︎ Jupiter19:11 – 20:28
- 4♂︎ Mars20:28 – 21:45
- 5☉︎ Sun21:45 – 23:02
- 6♀︎ Venus23:02 – 00:19
- 7☿︎ Mercury00:19 – 01:36
- 8☽︎ Moon01:36 – 02:53
- 9♄︎ Saturn02:53 – 04:10
- 10♃︎ Jupiter04:10 – 05:27
- 11♂︎ Mars05:27 – 06:44
- 12☉︎ Sun06:44 – 08:01
Other cities · Romania
Questions
How are the planetary hours calculated in Cluj-Napoca?
On Thursday, 11 December 2025, the Sun rises at 08:00 and sets at 16:37: the day lasts 8h 37m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:01, lasts 15h 24m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Jupiter, from 08:00 to 08:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.