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, 16 July 2026: day of Jupiter
- Sunrise
- 04:20
- Sunset
- 20:45
- Next sunrise
- 04:21
A day hour lasts 1h 22m; a night hour, 38 min. Local time (Europe/Warsaw).
Day
- 1♃︎ Jupiter04:20 – 05:42
- 2♂︎ Mars05:42 – 07:04
- 3☉︎ Sun07:04 – 08:26
- 4♀︎ Venus08:26 – 09:48
- 5☿︎ Mercury09:48 – 11:10
- 6☽︎ Moon11:10 – 12:33
- 7♄︎ Saturn12:33 – 13:55
- 8♃︎ Jupiter13:55 – 15:17
- 9♂︎ Mars15:17 – 16:39
- 10☉︎ Sun16:39 – 18:01
- 11♀︎ Venus18:01 – 19:23
- 12☿︎ Mercury19:23 – 20:45
Night
- 1☽︎ Moon20:45 – 21:23
- 2♄︎ Saturn21:23 – 22:01
- 3♃︎ Jupiter22:01 – 22:39
- 4♂︎ Mars22:39 – 23:17
- 5☉︎ Sun23:17 – 23:55
- 6♀︎ Venus23:55 – 00:33
- 7☿︎ Mercury00:33 – 01:11
- 8☽︎ Moon01:11 – 01:49
- 9♄︎ Saturn01:49 – 02:27
- 10♃︎ Jupiter02:27 – 03:05
- 11♂︎ Mars03:05 – 03:43
- 12☉︎ Sun03:43 – 04:21
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Thursday, 16 July 2026, the Sun rises at 04:20 and sets at 20:45: the day lasts 16h 25m, that is twelve day hours of 1h 22m. The night, until the next sunrise at 04:21, lasts 7h 36m: twelve night hours of 38 min.
Which planet rules the first hour that day?
Jupiter, from 04:20 to 05:42: 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.