Planetary hours
in Bydgoszcz.
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, 10 December 2025: day of Mercury
- Sunrise
- 07:50
- Sunset
- 15:30
- Next sunrise
- 07:51
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury07:50 – 08:29
- 2☽︎ Moon08:29 – 09:07
- 3♄︎ Saturn09:07 – 09:45
- 4♃︎ Jupiter09:45 – 10:24
- 5♂︎ Mars10:24 – 11:02
- 6☉︎ Sun11:02 – 11:40
- 7♀︎ Venus11:40 – 12:19
- 8☿︎ Mercury12:19 – 12:57
- 9☽︎ Moon12:57 – 13:35
- 10♄︎ Saturn13:35 – 14:13
- 11♃︎ Jupiter14:13 – 14:52
- 12♂︎ Mars14:52 – 15:30
Night
- 1☉︎ Sun15:30 – 16:52
- 2♀︎ Venus16:52 – 18:14
- 3☿︎ Mercury18:14 – 19:35
- 4☽︎ Moon19:35 – 20:57
- 5♄︎ Saturn20:57 – 22:19
- 6♃︎ Jupiter22:19 – 23:41
- 7♂︎ Mars23:41 – 01:03
- 8☉︎ Sun01:03 – 02:24
- 9♀︎ Venus02:24 – 03:46
- 10☿︎ Mercury03:46 – 05:08
- 11☽︎ Moon05:08 – 06:30
- 12♄︎ Saturn06:30 – 07:51
Other cities · Poland
Questions
How are the planetary hours calculated in Bydgoszcz?
On Wednesday, 10 December 2025, the Sun rises at 07:50 and sets at 15:30: the day lasts 7h 40m, that is twelve day hours of 38 min. The night, until the next sunrise at 07:51, lasts 16h 21m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mercury, from 07:50 to 08:29: 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.