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 Wednesday, 24 December 2025: day of Mercury
- Sunrise
- 08:42
- Sunset
- 17:40
- Next sunrise
- 08:42
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Madrid).
Day
- 1☿︎ Mercury08:42 – 09:26
- 2☽︎ Moon09:26 – 10:11
- 3♄︎ Saturn10:11 – 10:56
- 4♃︎ Jupiter10:56 – 11:41
- 5♂︎ Mars11:41 – 12:26
- 6☉︎ Sun12:26 – 13:11
- 7♀︎ Venus13:11 – 13:56
- 8☿︎ Mercury13:56 – 14:41
- 9☽︎ Moon14:41 – 15:26
- 10♄︎ Saturn15:26 – 16:11
- 11♃︎ Jupiter16:11 – 16:55
- 12♂︎ Mars16:55 – 17:40
Night
- 1☉︎ Sun17:40 – 18:55
- 2♀︎ Venus18:55 – 20:11
- 3☿︎ Mercury20:11 – 21:26
- 4☽︎ Moon21:26 – 22:41
- 5♄︎ Saturn22:41 – 23:56
- 6♃︎ Jupiter23:56 – 01:11
- 7♂︎ Mars01:11 – 02:26
- 8☉︎ Sun02:26 – 03:41
- 9♀︎ Venus03:41 – 04:57
- 10☿︎ Mercury04:57 – 06:12
- 11☽︎ Moon06:12 – 07:27
- 12♄︎ Saturn07:27 – 08:42
Other cities · Spain
Questions
How are the planetary hours calculated in Bilbao?
On Wednesday, 24 December 2025, the Sun rises at 08:42 and sets at 17:40: the day lasts 8h 59m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:42, lasts 15h 02m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Mercury, from 08:42 to 09:26: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.