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, 17 December 2026: day of Jupiter
- Sunrise
- 08:04
- Sunset
- 16:38
- Next sunrise
- 08:05
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Bucharest).
Day
- 1♃︎ Jupiter08:04 – 08:47
- 2♂︎ Mars08:47 – 09:30
- 3☉︎ Sun09:30 – 10:13
- 4♀︎ Venus10:13 – 10:56
- 5☿︎ Mercury10:56 – 11:38
- 6☽︎ Moon11:38 – 12:21
- 7♄︎ Saturn12:21 – 13:04
- 8♃︎ Jupiter13:04 – 13:47
- 9♂︎ Mars13:47 – 14:29
- 10☉︎ Sun14:29 – 15:12
- 11♀︎ Venus15:12 – 15:55
- 12☿︎ Mercury15:55 – 16:38
Night
- 1☽︎ Moon16:38 – 17:55
- 2♄︎ Saturn17:55 – 19:12
- 3♃︎ Jupiter19:12 – 20:30
- 4♂︎ Mars20:30 – 21:47
- 5☉︎ Sun21:47 – 23:04
- 6♀︎ Venus23:04 – 00:21
- 7☿︎ Mercury00:21 – 01:39
- 8☽︎ Moon01:39 – 02:56
- 9♄︎ Saturn02:56 – 04:13
- 10♃︎ Jupiter04:13 – 05:31
- 11♂︎ Mars05:31 – 06:48
- 12☉︎ Sun06:48 – 08:05
Other cities · Romania
Questions
How are the planetary hours calculated in Cluj-Napoca?
On Thursday, 17 December 2026, the Sun rises at 08:04 and sets at 16:38: the day lasts 8h 33m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:05, lasts 15h 27m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Jupiter, from 08:04 to 08:47: 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.