Planetary hours
in Zaragoza.
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, 16 December 2025: day of Mars
- Sunrise
- 08:24
- Sunset
- 17:34
- Next sunrise
- 08:24
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Madrid).
Day
- 1♂︎ Mars08:24 – 09:09
- 2☉︎ Sun09:09 – 09:55
- 3♀︎ Venus09:55 – 10:41
- 4☿︎ Mercury10:41 – 11:27
- 5☽︎ Moon11:27 – 12:13
- 6♄︎ Saturn12:13 – 12:59
- 7♃︎ Jupiter12:59 – 13:45
- 8♂︎ Mars13:45 – 14:30
- 9☉︎ Sun14:30 – 15:16
- 10♀︎ Venus15:16 – 16:02
- 11☿︎ Mercury16:02 – 16:48
- 12☽︎ Moon16:48 – 17:34
Night
- 1♄︎ Saturn17:34 – 18:48
- 2♃︎ Jupiter18:48 – 20:02
- 3♂︎ Mars20:02 – 21:16
- 4☉︎ Sun21:16 – 22:31
- 5♀︎ Venus22:31 – 23:45
- 6☿︎ Mercury23:45 – 00:59
- 7☽︎ Moon00:59 – 02:13
- 8♄︎ Saturn02:13 – 03:27
- 9♃︎ Jupiter03:27 – 04:42
- 10♂︎ Mars04:42 – 05:56
- 11☉︎ Sun05:56 – 07:10
- 12♀︎ Venus07:10 – 08:24
Other cities · Spain
Questions
How are the planetary hours calculated in Zaragoza?
On Tuesday, 16 December 2025, the Sun rises at 08:24 and sets at 17:34: the day lasts 9h 10m, that is twelve day hours of 46 min. The night, until the next sunrise at 08:24, lasts 14h 51m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Mars, from 08:24 to 09:09: 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.