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, 16 December 2026: day of Mercury
- Sunrise
- 07:35
- Sunset
- 15:09
- Next sunrise
- 07:36
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury07:35 – 08:13
- 2☽︎ Moon08:13 – 08:51
- 3♄︎ Saturn08:51 – 09:29
- 4♃︎ Jupiter09:29 – 10:07
- 5♂︎ Mars10:07 – 10:45
- 6☉︎ Sun10:45 – 11:22
- 7♀︎ Venus11:22 – 12:00
- 8☿︎ Mercury12:00 – 12:38
- 9☽︎ Moon12:38 – 13:16
- 10♄︎ Saturn13:16 – 13:54
- 11♃︎ Jupiter13:54 – 14:32
- 12♂︎ Mars14:32 – 15:09
Night
- 1☉︎ Sun15:09 – 16:32
- 2♀︎ Venus16:32 – 17:54
- 3☿︎ Mercury17:54 – 19:16
- 4☽︎ Moon19:16 – 20:38
- 5♄︎ Saturn20:38 – 22:01
- 6♃︎ Jupiter22:01 – 23:23
- 7♂︎ Mars23:23 – 00:45
- 8☉︎ Sun00:45 – 02:07
- 9♀︎ Venus02:07 – 03:29
- 10☿︎ Mercury03:29 – 04:52
- 11☽︎ Moon04:52 – 06:14
- 12♄︎ Saturn06:14 – 07:36
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 16 December 2026, the Sun rises at 07:35 and sets at 15:09: the day lasts 7h 34m, that is twelve day hours of 38 min. The night, until the next sunrise at 07:36, lasts 16h 27m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mercury, from 07:35 to 08:13: 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.