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 Wednesday, 17 September 2025: day of Mercury
- Sunrise
- 07:05
- Sunset
- 19:33
- Next sunrise
- 07:07
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Europe/Bucharest).
Day
- 1☿︎ Mercury07:05 – 08:08
- 2☽︎ Moon08:08 – 09:10
- 3♄︎ Saturn09:10 – 10:12
- 4♃︎ Jupiter10:12 – 11:15
- 5♂︎ Mars11:15 – 12:17
- 6☉︎ Sun12:17 – 13:19
- 7♀︎ Venus13:19 – 14:21
- 8☿︎ Mercury14:21 – 15:24
- 9☽︎ Moon15:24 – 16:26
- 10♄︎ Saturn16:26 – 17:28
- 11♃︎ Jupiter17:28 – 18:30
- 12♂︎ Mars18:30 – 19:33
Night
- 1☉︎ Sun19:33 – 20:31
- 2♀︎ Venus20:31 – 21:28
- 3☿︎ Mercury21:28 – 22:26
- 4☽︎ Moon22:26 – 23:24
- 5♄︎ Saturn23:24 – 00:22
- 6♃︎ Jupiter00:22 – 01:20
- 7♂︎ Mars01:20 – 02:18
- 8☉︎ Sun02:18 – 03:15
- 9♀︎ Venus03:15 – 04:13
- 10☿︎ Mercury04:13 – 05:11
- 11☽︎ Moon05:11 – 06:09
- 12♄︎ Saturn06:09 – 07:07
Other cities · Romania
Questions
How are the planetary hours calculated in Cluj-Napoca?
On Wednesday, 17 September 2025, the Sun rises at 07:05 and sets at 19:33: the day lasts 12h 27m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:07, lasts 11h 34m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mercury, from 07:05 to 08:08: 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.