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, 18 October 2025: day of Saturn
- Sunrise
- 08:29
- Sunset
- 19:23
- Next sunrise
- 08:30
A day hour lasts 55 min; a night hour, 1h 06m. Local time (Europe/Madrid).
Day
- 1♄︎ Saturn08:29 – 09:23
- 2♃︎ Jupiter09:23 – 10:18
- 3♂︎ Mars10:18 – 11:12
- 4☉︎ Sun11:12 – 12:07
- 5♀︎ Venus12:07 – 13:01
- 6☿︎ Mercury13:01 – 13:56
- 7☽︎ Moon13:56 – 14:51
- 8♄︎ Saturn14:51 – 15:45
- 9♃︎ Jupiter15:45 – 16:40
- 10♂︎ Mars16:40 – 17:34
- 11☉︎ Sun17:34 – 18:29
- 12♀︎ Venus18:29 – 19:23
Night
- 1☿︎ Mercury19:23 – 20:29
- 2☽︎ Moon20:29 – 21:34
- 3♄︎ Saturn21:34 – 22:40
- 4♃︎ Jupiter22:40 – 23:45
- 5♂︎ Mars23:45 – 00:51
- 6☉︎ Sun00:51 – 01:57
- 7♀︎ Venus01:57 – 03:02
- 8☿︎ Mercury03:02 – 04:08
- 9☽︎ Moon04:08 – 05:13
- 10♄︎ Saturn05:13 – 06:19
- 11♃︎ Jupiter06:19 – 07:24
- 12♂︎ Mars07:24 – 08:30
Other cities · Spain
Questions
How are the planetary hours calculated in Bilbao?
On Saturday, 18 October 2025, the Sun rises at 08:29 and sets at 19:23: the day lasts 10h 54m, that is twelve day hours of 55 min. The night, until the next sunrise at 08:30, lasts 13h 07m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Saturn, from 08:29 to 09:23: 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.