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, 4 October 2025: day of Saturn
- Sunrise
- 08:12
- Sunset
- 19:47
- Next sunrise
- 08:13
A day hour lasts 58 min; a night hour, 1h 02m. Local time (Europe/Madrid).
Day
- 1♄︎ Saturn08:12 – 09:10
- 2♃︎ Jupiter09:10 – 10:08
- 3♂︎ Mars10:08 – 11:06
- 4☉︎ Sun11:06 – 12:04
- 5♀︎ Venus12:04 – 13:02
- 6☿︎ Mercury13:02 – 13:59
- 7☽︎ Moon13:59 – 14:57
- 8♄︎ Saturn14:57 – 15:55
- 9♃︎ Jupiter15:55 – 16:53
- 10♂︎ Mars16:53 – 17:51
- 11☉︎ Sun17:51 – 18:49
- 12♀︎ Venus18:49 – 19:47
Night
- 1☿︎ Mercury19:47 – 20:49
- 2☽︎ Moon20:49 – 21:51
- 3♄︎ Saturn21:51 – 22:53
- 4♃︎ Jupiter22:53 – 23:56
- 5♂︎ Mars23:56 – 00:58
- 6☉︎ Sun00:58 – 02:00
- 7♀︎ Venus02:00 – 03:02
- 8☿︎ Mercury03:02 – 04:04
- 9☽︎ Moon04:04 – 05:07
- 10♄︎ Saturn05:07 – 06:09
- 11♃︎ Jupiter06:09 – 07:11
- 12♂︎ Mars07:11 – 08:13
Other cities · Spain
Questions
How are the planetary hours calculated in Bilbao?
On Saturday, 4 October 2025, the Sun rises at 08:12 and sets at 19:47: the day lasts 11h 35m, that is twelve day hours of 58 min. The night, until the next sunrise at 08:13, lasts 12h 26m: twelve night hours of 1h 02m.
Which planet rules the first hour that day?
Saturn, from 08:12 to 09:10: 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.