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, 9 December 2026: day of Mercury
- Sunrise
- 07:28
- Sunset
- 15:10
- Next sunrise
- 07:30
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury07:28 – 08:07
- 2☽︎ Moon08:07 – 08:45
- 3♄︎ Saturn08:45 – 09:24
- 4♃︎ Jupiter09:24 – 10:02
- 5♂︎ Mars10:02 – 10:41
- 6☉︎ Sun10:41 – 11:19
- 7♀︎ Venus11:19 – 11:57
- 8☿︎ Mercury11:57 – 12:36
- 9☽︎ Moon12:36 – 13:14
- 10♄︎ Saturn13:14 – 13:53
- 11♃︎ Jupiter13:53 – 14:31
- 12♂︎ Mars14:31 – 15:10
Night
- 1☉︎ Sun15:10 – 16:31
- 2♀︎ Venus16:31 – 17:53
- 3☿︎ Mercury17:53 – 19:15
- 4☽︎ Moon19:15 – 20:36
- 5♄︎ Saturn20:36 – 21:58
- 6♃︎ Jupiter21:58 – 23:20
- 7♂︎ Mars23:20 – 00:41
- 8☉︎ Sun00:41 – 02:03
- 9♀︎ Venus02:03 – 03:25
- 10☿︎ Mercury03:25 – 04:46
- 11☽︎ Moon04:46 – 06:08
- 12♄︎ Saturn06:08 – 07:30
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 9 December 2026, the Sun rises at 07:28 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?
Mercury, from 07:28 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 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.