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 September 2025: day of Saturn
- Sunrise
- 07:41
- Sunset
- 20:37
- Next sunrise
- 07:42
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Europe/Madrid).
Day
- 1♄︎ Saturn07:41 – 08:46
- 2♃︎ Jupiter08:46 – 09:50
- 3♂︎ Mars09:50 – 10:55
- 4☉︎ Sun10:55 – 12:00
- 5♀︎ Venus12:00 – 13:04
- 6☿︎ Mercury13:04 – 14:09
- 7☽︎ Moon14:09 – 15:14
- 8♄︎ Saturn15:14 – 16:18
- 9♃︎ Jupiter16:18 – 17:23
- 10♂︎ Mars17:23 – 18:28
- 11☉︎ Sun18:28 – 19:33
- 12♀︎ Venus19:33 – 20:37
Night
- 1☿︎ Mercury20:37 – 21:33
- 2☽︎ Moon21:33 – 22:28
- 3♄︎ Saturn22:28 – 23:23
- 4♃︎ Jupiter23:23 – 00:19
- 5♂︎ Mars00:19 – 01:14
- 6☉︎ Sun01:14 – 02:10
- 7♀︎ Venus02:10 – 03:05
- 8☿︎ Mercury03:05 – 04:00
- 9☽︎ Moon04:00 – 04:56
- 10♄︎ Saturn04:56 – 05:51
- 11♃︎ Jupiter05:51 – 06:47
- 12♂︎ Mars06:47 – 07:42
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Questions
How are the planetary hours calculated in Bilbao?
On Saturday, 6 September 2025, the Sun rises at 07:41 and sets at 20:37: the day lasts 12h 56m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 07:42, lasts 11h 05m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Saturn, from 07:41 to 08:46: 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.