Planetary hours
in Białystok.
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, 9 December 2025: day of Mars
- Sunrise
- 07:29
- Sunset
- 15:10
- Next sunrise
- 07:30
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/Warsaw).
Day
- 1♂︎ Mars07:29 – 08:07
- 2☉︎ Sun08:07 – 08:45
- 3♀︎ Venus08:45 – 09:24
- 4☿︎ Mercury09:24 – 10:02
- 5☽︎ Moon10:02 – 10:41
- 6♄︎ Saturn10:41 – 11:19
- 7♃︎ Jupiter11:19 – 11:58
- 8♂︎ Mars11:58 – 12:36
- 9☉︎ Sun12:36 – 13:14
- 10♀︎ Venus13:14 – 13:53
- 11☿︎ Mercury13:53 – 14:31
- 12☽︎ Moon14:31 – 15:10
Night
- 1♄︎ Saturn15:10 – 16:31
- 2♃︎ Jupiter16:31 – 17:53
- 3♂︎ Mars17:53 – 19:15
- 4☉︎ Sun19:15 – 20:36
- 5♀︎ Venus20:36 – 21:58
- 6☿︎ Mercury21:58 – 23:20
- 7☽︎ Moon23:20 – 00:41
- 8♄︎ Saturn00:41 – 02:03
- 9♃︎ Jupiter02:03 – 03:25
- 10♂︎ Mars03:25 – 04:46
- 11☉︎ Sun04:46 – 06:08
- 12♀︎ Venus06:08 – 07:30
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Tuesday, 9 December 2025, the Sun rises at 07:29 and sets at 15:10: the day lasts 7h 41m, that is twelve day hours of 38 min. The night, until the next sunrise at 07:30, lasts 16h 20m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mars, from 07:29 to 08:07: 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.