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, 30 May 2026: day of Saturn
- Sunrise
- 04:09
- Sunset
- 20:41
- Next sunrise
- 04:08
A day hour lasts 1h 23m; a night hour, 37 min. Local time (Europe/Warsaw).
Day
- 1♄︎ Saturn04:09 – 05:31
- 2♃︎ Jupiter05:31 – 06:54
- 3♂︎ Mars06:54 – 08:17
- 4☉︎ Sun08:17 – 09:39
- 5♀︎ Venus09:39 – 11:02
- 6☿︎ Mercury11:02 – 12:25
- 7☽︎ Moon12:25 – 13:47
- 8♄︎ Saturn13:47 – 15:10
- 9♃︎ Jupiter15:10 – 16:33
- 10♂︎ Mars16:33 – 17:56
- 11☉︎ Sun17:56 – 19:18
- 12♀︎ Venus19:18 – 20:41
Night
- 1☿︎ Mercury20:41 – 21:18
- 2☽︎ Moon21:18 – 21:55
- 3♄︎ Saturn21:55 – 22:33
- 4♃︎ Jupiter22:33 – 23:10
- 5♂︎ Mars23:10 – 23:47
- 6☉︎ Sun23:47 – 00:24
- 7♀︎ Venus00:24 – 01:02
- 8☿︎ Mercury01:02 – 01:39
- 9☽︎ Moon01:39 – 02:16
- 10♄︎ Saturn02:16 – 02:53
- 11♃︎ Jupiter02:53 – 03:30
- 12♂︎ Mars03:30 – 04:08
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Saturday, 30 May 2026, the Sun rises at 04:09 and sets at 20:41: the day lasts 16h 32m, that is twelve day hours of 1h 23m. The night, until the next sunrise at 04:08, lasts 7h 27m: twelve night hours of 37 min.
Which planet rules the first hour that day?
Saturn, from 04:09 to 05:31: 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.