Planetary hours
in Constanţa.
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 December 2025: day of Mercury
- Sunrise
- 07:35
- Sunset
- 16:27
- Next sunrise
- 07:35
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Bucharest).
Day
- 1☿︎ Mercury07:35 – 08:19
- 2☽︎ Moon08:19 – 09:04
- 3♄︎ Saturn09:04 – 09:48
- 4♃︎ Jupiter09:48 – 10:32
- 5♂︎ Mars10:32 – 11:17
- 6☉︎ Sun11:17 – 12:01
- 7♀︎ Venus12:01 – 12:46
- 8☿︎ Mercury12:46 – 13:30
- 9☽︎ Moon13:30 – 14:14
- 10♄︎ Saturn14:14 – 14:59
- 11♃︎ Jupiter14:59 – 15:43
- 12♂︎ Mars15:43 – 16:27
Night
- 1☉︎ Sun16:27 – 17:43
- 2♀︎ Venus17:43 – 18:59
- 3☿︎ Mercury18:59 – 20:14
- 4☽︎ Moon20:14 – 21:30
- 5♄︎ Saturn21:30 – 22:46
- 6♃︎ Jupiter22:46 – 00:01
- 7♂︎ Mars00:01 – 01:17
- 8☉︎ Sun01:17 – 02:33
- 9♀︎ Venus02:33 – 03:48
- 10☿︎ Mercury03:48 – 05:04
- 11☽︎ Moon05:04 – 06:20
- 12♄︎ Saturn06:20 – 07:35
Other cities · Romania
Questions
How are the planetary hours calculated in Constanţa?
On Wednesday, 17 December 2025, the Sun rises at 07:35 and sets at 16:27: the day lasts 8h 53m, that is twelve day hours of 44 min. The night, until the next sunrise at 07:35, lasts 15h 08m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Mercury, from 07:35 to 08:19: 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.