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 Tuesday, 21 October 2025: day of Mars
- Sunrise
- 07:51
- Sunset
- 18:27
- Next sunrise
- 07:53
A day hour lasts 53 min; a night hour, 1h 07m. Local time (Europe/Bucharest).
Day
- 1♂︎ Mars07:51 – 08:44
- 2☉︎ Sun08:44 – 09:37
- 3♀︎ Venus09:37 – 10:30
- 4☿︎ Mercury10:30 – 11:23
- 5☽︎ Moon11:23 – 12:16
- 6♄︎ Saturn12:16 – 13:09
- 7♃︎ Jupiter13:09 – 14:02
- 8♂︎ Mars14:02 – 14:55
- 9☉︎ Sun14:55 – 15:48
- 10♀︎ Venus15:48 – 16:41
- 11☿︎ Mercury16:41 – 17:34
- 12☽︎ Moon17:34 – 18:27
Night
- 1♄︎ Saturn18:27 – 19:34
- 2♃︎ Jupiter19:34 – 20:42
- 3♂︎ Mars20:42 – 21:49
- 4☉︎ Sun21:49 – 22:56
- 5♀︎ Venus22:56 – 00:03
- 6☿︎ Mercury00:03 – 01:10
- 7☽︎ Moon01:10 – 02:17
- 8♄︎ Saturn02:17 – 03:24
- 9♃︎ Jupiter03:24 – 04:31
- 10♂︎ Mars04:31 – 05:39
- 11☉︎ Sun05:39 – 06:46
- 12♀︎ Venus06:46 – 07:53
Other cities · Romania
Questions
How are the planetary hours calculated in Cluj-Napoca?
On Tuesday, 21 October 2025, the Sun rises at 07:51 and sets at 18:27: the day lasts 10h 36m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:53, lasts 13h 26m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Mars, from 07:51 to 08:44: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.