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 Friday, 31 July 2026: day of Venus
- Sunrise
- 04:42
- Sunset
- 20:23
- Next sunrise
- 04:44
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/Warsaw).
Day
- 1♀︎ Venus04:42 – 06:01
- 2☿︎ Mercury06:01 – 07:19
- 3☽︎ Moon07:19 – 08:37
- 4♄︎ Saturn08:37 – 09:56
- 5♃︎ Jupiter09:56 – 11:14
- 6♂︎ Mars11:14 – 12:33
- 7☉︎ Sun12:33 – 13:51
- 8♀︎ Venus13:51 – 15:10
- 9☿︎ Mercury15:10 – 16:28
- 10☽︎ Moon16:28 – 17:46
- 11♄︎ Saturn17:46 – 19:05
- 12♃︎ Jupiter19:05 – 20:23
Night
- 1♂︎ Mars20:23 – 21:05
- 2☉︎ Sun21:05 – 21:47
- 3♀︎ Venus21:47 – 22:28
- 4☿︎ Mercury22:28 – 23:10
- 5☽︎ Moon23:10 – 23:52
- 6♄︎ Saturn23:52 – 00:34
- 7♃︎ Jupiter00:34 – 01:15
- 8♂︎ Mars01:15 – 01:57
- 9☉︎ Sun01:57 – 02:39
- 10♀︎ Venus02:39 – 03:20
- 11☿︎ Mercury03:20 – 04:02
- 12☽︎ Moon04:02 – 04:44
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Friday, 31 July 2026, the Sun rises at 04:42 and sets at 20:23: the day lasts 15h 41m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 04:44, lasts 8h 21m: twelve night hours of 42 min.
Which planet rules the first hour that day?
Venus, from 04:42 to 06:01: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.