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 Thursday, 4 December 2025: day of Jupiter
- Sunrise
- 07:22
- Sunset
- 15:12
- Next sunrise
- 07:24
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/Warsaw).
Day
- 1♃︎ Jupiter07:22 – 08:01
- 2♂︎ Mars08:01 – 08:41
- 3☉︎ Sun08:41 – 09:20
- 4♀︎ Venus09:20 – 09:59
- 5☿︎ Mercury09:59 – 10:38
- 6☽︎ Moon10:38 – 11:17
- 7♄︎ Saturn11:17 – 11:56
- 8♃︎ Jupiter11:56 – 12:35
- 9♂︎ Mars12:35 – 13:14
- 10☉︎ Sun13:14 – 13:53
- 11♀︎ Venus13:53 – 14:32
- 12☿︎ Mercury14:32 – 15:12
Night
- 1☽︎ Moon15:12 – 16:33
- 2♄︎ Saturn16:33 – 17:54
- 3♃︎ Jupiter17:54 – 19:15
- 4♂︎ Mars19:15 – 20:36
- 5☉︎ Sun20:36 – 21:57
- 6♀︎ Venus21:57 – 23:18
- 7☿︎ Mercury23:18 – 00:39
- 8☽︎ Moon00:39 – 02:00
- 9♄︎ Saturn02:00 – 03:21
- 10♃︎ Jupiter03:21 – 04:42
- 11♂︎ Mars04:42 – 06:03
- 12☉︎ Sun06:03 – 07:24
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Thursday, 4 December 2025, the Sun rises at 07:22 and sets at 15:12: the day lasts 7h 49m, that is twelve day hours of 39 min. The night, until the next sunrise at 07:24, lasts 16h 12m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
Jupiter, from 07:22 to 08:01: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.