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 Friday, 17 October 2025: day of Venus
- Sunrise
- 08:18
- Sunset
- 19:18
- Next sunrise
- 08:19
A day hour lasts 55 min; a night hour, 1h 05m. Local time (Europe/Madrid).
Day
- 1♀︎ Venus08:18 – 09:13
- 2☿︎ Mercury09:13 – 10:08
- 3☽︎ Moon10:08 – 11:03
- 4♄︎ Saturn11:03 – 11:58
- 5♃︎ Jupiter11:58 – 12:53
- 6♂︎ Mars12:53 – 13:48
- 7☉︎ Sun13:48 – 14:43
- 8♀︎ Venus14:43 – 15:38
- 9☿︎ Mercury15:38 – 16:33
- 10☽︎ Moon16:33 – 17:28
- 11♄︎ Saturn17:28 – 18:23
- 12♃︎ Jupiter18:23 – 19:18
Night
- 1♂︎ Mars19:18 – 20:24
- 2☉︎ Sun20:24 – 21:29
- 3♀︎ Venus21:29 – 22:34
- 4☿︎ Mercury22:34 – 23:39
- 5☽︎ Moon23:39 – 00:44
- 6♄︎ Saturn00:44 – 01:49
- 7♃︎ Jupiter01:49 – 02:54
- 8♂︎ Mars02:54 – 03:59
- 9☉︎ Sun03:59 – 05:04
- 10♀︎ Venus05:04 – 06:09
- 11☿︎ Mercury06:09 – 07:14
- 12☽︎ Moon07:14 – 08:19
Other cities · Spain
Questions
How are the planetary hours calculated in Zaragoza?
On Friday, 17 October 2025, the Sun rises at 08:18 and sets at 19:18: the day lasts 11h 01m, that is twelve day hours of 55 min. The night, until the next sunrise at 08:19, lasts 13h 00m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Venus, from 08:18 to 09:13: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.