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 Saturday, 23 May 2026: day of Saturn
- Sunrise
- 04:17
- Sunset
- 20:32
- Next sunrise
- 04:15
A day hour lasts 1h 21m; a night hour, 39 min. Local time (Europe/Warsaw).
Day
- 1♄︎ Saturn04:17 – 05:38
- 2♃︎ Jupiter05:38 – 06:59
- 3♂︎ Mars06:59 – 08:20
- 4☉︎ Sun08:20 – 09:42
- 5♀︎ Venus09:42 – 11:03
- 6☿︎ Mercury11:03 – 12:24
- 7☽︎ Moon12:24 – 13:45
- 8♄︎ Saturn13:45 – 15:07
- 9♃︎ Jupiter15:07 – 16:28
- 10♂︎ Mars16:28 – 17:49
- 11☉︎ Sun17:49 – 19:10
- 12♀︎ Venus19:10 – 20:32
Night
- 1☿︎ Mercury20:32 – 21:10
- 2☽︎ Moon21:10 – 21:49
- 3♄︎ Saturn21:49 – 22:27
- 4♃︎ Jupiter22:27 – 23:06
- 5♂︎ Mars23:06 – 23:45
- 6☉︎ Sun23:45 – 00:23
- 7♀︎ Venus00:23 – 01:02
- 8☿︎ Mercury01:02 – 01:41
- 9☽︎ Moon01:41 – 02:19
- 10♄︎ Saturn02:19 – 02:58
- 11♃︎ Jupiter02:58 – 03:37
- 12♂︎ Mars03:37 – 04:15
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Saturday, 23 May 2026, the Sun rises at 04:17 and sets at 20:32: the day lasts 16h 15m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 04:15, lasts 7h 44m: twelve night hours of 39 min.
Which planet rules the first hour that day?
Saturn, from 04:17 to 05:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.