Planetary hours
in Bilbao.
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 Saturday, 6 December 2025: day of Saturn
- Sunrise
- 08:29
- Sunset
- 17:36
- Next sunrise
- 08:30
A day hour lasts 46 min; a night hour, 1h 15m. Local time (Europe/Madrid).
Day
- 1♄︎ Saturn08:29 – 09:14
- 2♃︎ Jupiter09:14 – 10:00
- 3♂︎ Mars10:00 – 10:46
- 4☉︎ Sun10:46 – 11:31
- 5♀︎ Venus11:31 – 12:17
- 6☿︎ Mercury12:17 – 13:02
- 7☽︎ Moon13:02 – 13:48
- 8♄︎ Saturn13:48 – 14:33
- 9♃︎ Jupiter14:33 – 15:19
- 10♂︎ Mars15:19 – 16:05
- 11☉︎ Sun16:05 – 16:50
- 12♀︎ Venus16:50 – 17:36
Night
- 1☿︎ Mercury17:36 – 18:50
- 2☽︎ Moon18:50 – 20:05
- 3♄︎ Saturn20:05 – 21:19
- 4♃︎ Jupiter21:19 – 22:34
- 5♂︎ Mars22:34 – 23:48
- 6☉︎ Sun23:48 – 01:03
- 7♀︎ Venus01:03 – 02:17
- 8☿︎ Mercury02:17 – 03:32
- 9☽︎ Moon03:32 – 04:46
- 10♄︎ Saturn04:46 – 06:01
- 11♃︎ Jupiter06:01 – 07:15
- 12♂︎ Mars07:15 – 08:30
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Questions
How are the planetary hours calculated in Bilbao?
On Saturday, 6 December 2025, the Sun rises at 08:29 and sets at 17:36: the day lasts 9h 07m, that is twelve day hours of 46 min. The night, until the next sunrise at 08:30, lasts 14h 54m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Saturn, from 08:29 to 09:14: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.