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 Thursday, 23 July 2026: day of Jupiter
- Sunrise
- 04:30
- Sunset
- 20:36
- Next sunrise
- 04:31
A day hour lasts 1h 21m; a night hour, 40 min. Local time (Europe/Warsaw).
Day
- 1♃︎ Jupiter04:30 – 05:50
- 2♂︎ Mars05:50 – 07:11
- 3☉︎ Sun07:11 – 08:31
- 4♀︎ Venus08:31 – 09:52
- 5☿︎ Mercury09:52 – 11:12
- 6☽︎ Moon11:12 – 12:33
- 7♄︎ Saturn12:33 – 13:53
- 8♃︎ Jupiter13:53 – 15:14
- 9♂︎ Mars15:14 – 16:34
- 10☉︎ Sun16:34 – 17:55
- 11♀︎ Venus17:55 – 19:15
- 12☿︎ Mercury19:15 – 20:36
Night
- 1☽︎ Moon20:36 – 21:16
- 2♄︎ Saturn21:16 – 21:55
- 3♃︎ Jupiter21:55 – 22:35
- 4♂︎ Mars22:35 – 23:14
- 5☉︎ Sun23:14 – 23:54
- 6♀︎ Venus23:54 – 00:34
- 7☿︎ Mercury00:34 – 01:13
- 8☽︎ Moon01:13 – 01:53
- 9♄︎ Saturn01:53 – 02:32
- 10♃︎ Jupiter02:32 – 03:12
- 11♂︎ Mars03:12 – 03:52
- 12☉︎ Sun03:52 – 04:31
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Thursday, 23 July 2026, the Sun rises at 04:30 and sets at 20:36: the day lasts 16h 06m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 04:31, lasts 7h 55m: twelve night hours of 40 min.
Which planet rules the first hour that day?
Jupiter, from 04:30 to 05:50: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.