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, 30 July 2026: day of Jupiter
- Sunrise
- 04:41
- Sunset
- 20:25
- Next sunrise
- 04:42
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/Warsaw).
Day
- 1♃︎ Jupiter04:41 – 05:59
- 2♂︎ Mars05:59 – 07:18
- 3☉︎ Sun07:18 – 08:37
- 4♀︎ Venus08:37 – 09:55
- 5☿︎ Mercury09:55 – 11:14
- 6☽︎ Moon11:14 – 12:33
- 7♄︎ Saturn12:33 – 13:51
- 8♃︎ Jupiter13:51 – 15:10
- 9♂︎ Mars15:10 – 16:29
- 10☉︎ Sun16:29 – 17:48
- 11♀︎ Venus17:48 – 19:06
- 12☿︎ Mercury19:06 – 20:25
Night
- 1☽︎ Moon20:25 – 21:06
- 2♄︎ Saturn21:06 – 21:48
- 3♃︎ Jupiter21:48 – 22:29
- 4♂︎ Mars22:29 – 23:11
- 5☉︎ Sun23:11 – 23:52
- 6♀︎ Venus23:52 – 00:34
- 7☿︎ Mercury00:34 – 01:15
- 8☽︎ Moon01:15 – 01:56
- 9♄︎ Saturn01:56 – 02:38
- 10♃︎ Jupiter02:38 – 03:19
- 11♂︎ Mars03:19 – 04:01
- 12☉︎ Sun04:01 – 04:42
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Thursday, 30 July 2026, the Sun rises at 04:41 and sets at 20:25: the day lasts 15h 44m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 04:42, lasts 8h 17m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Jupiter, from 04:41 to 05:59: 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.