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 Tuesday, 15 December 2026: day of Mars
- Sunrise
- 08:36
- Sunset
- 17:36
- Next sunrise
- 08:37
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Madrid).
Day
- 1♂︎ Mars08:36 – 09:21
- 2☉︎ Sun09:21 – 10:06
- 3♀︎ Venus10:06 – 10:51
- 4☿︎ Mercury10:51 – 11:36
- 5☽︎ Moon11:36 – 12:21
- 6♄︎ Saturn12:21 – 13:06
- 7♃︎ Jupiter13:06 – 13:51
- 8♂︎ Mars13:51 – 14:36
- 9☉︎ Sun14:36 – 15:21
- 10♀︎ Venus15:21 – 16:06
- 11☿︎ Mercury16:06 – 16:51
- 12☽︎ Moon16:51 – 17:36
Night
- 1♄︎ Saturn17:36 – 18:51
- 2♃︎ Jupiter18:51 – 20:06
- 3♂︎ Mars20:06 – 21:21
- 4☉︎ Sun21:21 – 22:37
- 5♀︎ Venus22:37 – 23:52
- 6☿︎ Mercury23:52 – 01:07
- 7☽︎ Moon01:07 – 02:22
- 8♄︎ Saturn02:22 – 03:37
- 9♃︎ Jupiter03:37 – 04:52
- 10♂︎ Mars04:52 – 06:07
- 11☉︎ Sun06:07 – 07:22
- 12♀︎ Venus07:22 – 08:37
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Questions
How are the planetary hours calculated in Bilbao?
On Tuesday, 15 December 2026, the Sun rises at 08:36 and sets at 17:36: the day lasts 9h 00m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:37, lasts 15h 01m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Mars, from 08:36 to 09:21: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.