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 Sunday, 31 May 2026: day of the Sun
- Sunrise
- 04:08
- Sunset
- 20:42
- Next sunrise
- 04:07
A day hour lasts 1h 23m; a night hour, 37 min. Local time (Europe/Warsaw).
Day
- 1☉︎ Sun04:08 – 05:31
- 2♀︎ Venus05:31 – 06:53
- 3☿︎ Mercury06:53 – 08:16
- 4☽︎ Moon08:16 – 09:39
- 5♄︎ Saturn09:39 – 11:02
- 6♃︎ Jupiter11:02 – 12:25
- 7♂︎ Mars12:25 – 13:48
- 8☉︎ Sun13:48 – 15:11
- 9♀︎ Venus15:11 – 16:34
- 10☿︎ Mercury16:34 – 17:56
- 11☽︎ Moon17:56 – 19:19
- 12♄︎ Saturn19:19 – 20:42
Night
- 1♃︎ Jupiter20:42 – 21:19
- 2♂︎ Mars21:19 – 21:56
- 3☉︎ Sun21:56 – 22:33
- 4♀︎ Venus22:33 – 23:10
- 5☿︎ Mercury23:10 – 23:47
- 6☽︎ Moon23:47 – 00:24
- 7♄︎ Saturn00:24 – 01:02
- 8♃︎ Jupiter01:02 – 01:39
- 9♂︎ Mars01:39 – 02:16
- 10☉︎ Sun02:16 – 02:53
- 11♀︎ Venus02:53 – 03:30
- 12☿︎ Mercury03:30 – 04:07
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Sunday, 31 May 2026, the Sun rises at 04:08 and sets at 20:42: the day lasts 16h 34m, that is twelve day hours of 1h 23m. The night, until the next sunrise at 04:07, lasts 7h 25m: twelve night hours of 37 min.
Which planet rules the first hour that day?
The Sun, from 04:08 to 05:31: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.