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 Sunday, 21 September 2025: day of the Sun
- Sunrise
- 07:57
- Sunset
- 20:10
- Next sunrise
- 07:59
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Europe/Madrid).
Day
- 1☉︎ Sun07:57 – 08:59
- 2♀︎ Venus08:59 – 10:00
- 3☿︎ Mercury10:00 – 11:01
- 4☽︎ Moon11:01 – 12:02
- 5♄︎ Saturn12:02 – 13:03
- 6♃︎ Jupiter13:03 – 14:04
- 7♂︎ Mars14:04 – 15:05
- 8☉︎ Sun15:05 – 16:06
- 9♀︎ Venus16:06 – 17:07
- 10☿︎ Mercury17:07 – 18:08
- 11☽︎ Moon18:08 – 19:09
- 12♄︎ Saturn19:09 – 20:10
Night
- 1♃︎ Jupiter20:10 – 21:09
- 2♂︎ Mars21:09 – 22:08
- 3☉︎ Sun22:08 – 23:07
- 4♀︎ Venus23:07 – 00:06
- 5☿︎ Mercury00:06 – 01:05
- 6☽︎ Moon01:05 – 02:04
- 7♄︎ Saturn02:04 – 03:03
- 8♃︎ Jupiter03:03 – 04:02
- 9♂︎ Mars04:02 – 05:01
- 10☉︎ Sun05:01 – 06:01
- 11♀︎ Venus06:01 – 07:00
- 12☿︎ Mercury07:00 – 07:59
Other cities · Spain
Questions
How are the planetary hours calculated in Bilbao?
On Sunday, 21 September 2025, the Sun rises at 07:57 and sets at 20:10: the day lasts 12h 13m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 07:59, lasts 11h 48m: twelve night hours of 59 min.
Which planet rules the first hour that day?
The Sun, from 07:57 to 08:59: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.