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 Wednesday, 23 December 2026: day of Mercury
- Sunrise
- 07:40
- Sunset
- 15:12
- Next sunrise
- 07:40
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury07:40 – 08:17
- 2☽︎ Moon08:17 – 08:55
- 3♄︎ Saturn08:55 – 09:33
- 4♃︎ Jupiter09:33 – 10:10
- 5♂︎ Mars10:10 – 10:48
- 6☉︎ Sun10:48 – 11:26
- 7♀︎ Venus11:26 – 12:04
- 8☿︎ Mercury12:04 – 12:41
- 9☽︎ Moon12:41 – 13:19
- 10♄︎ Saturn13:19 – 13:57
- 11♃︎ Jupiter13:57 – 14:34
- 12♂︎ Mars14:34 – 15:12
Night
- 1☉︎ Sun15:12 – 16:34
- 2♀︎ Venus16:34 – 17:57
- 3☿︎ Mercury17:57 – 19:19
- 4☽︎ Moon19:19 – 20:41
- 5♄︎ Saturn20:41 – 22:04
- 6♃︎ Jupiter22:04 – 23:26
- 7♂︎ Mars23:26 – 00:48
- 8☉︎ Sun00:48 – 02:11
- 9♀︎ Venus02:11 – 03:33
- 10☿︎ Mercury03:33 – 04:55
- 11☽︎ Moon04:55 – 06:18
- 12♄︎ Saturn06:18 – 07:40
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 23 December 2026, the Sun rises at 07:40 and sets at 15:12: the day lasts 7h 33m, that is twelve day hours of 38 min. The night, until the next sunrise at 07:40, lasts 16h 28m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mercury, from 07:40 to 08:17: 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.