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 Saturday, 12 September 2026: day of Saturn
- Sunrise
- 05:55
- Sunset
- 18:50
- Next sunrise
- 05:57
A day hour lasts 1h 05m; a night hour, 56 min. Local time (Europe/Warsaw).
Day
- 1♄︎ Saturn05:55 – 07:00
- 2♃︎ Jupiter07:00 – 08:04
- 3♂︎ Mars08:04 – 09:09
- 4☉︎ Sun09:09 – 10:13
- 5♀︎ Venus10:13 – 11:18
- 6☿︎ Mercury11:18 – 12:23
- 7☽︎ Moon12:23 – 13:27
- 8♄︎ Saturn13:27 – 14:32
- 9♃︎ Jupiter14:32 – 15:36
- 10♂︎ Mars15:36 – 16:41
- 11☉︎ Sun16:41 – 17:45
- 12♀︎ Venus17:45 – 18:50
Night
- 1☿︎ Mercury18:50 – 19:46
- 2☽︎ Moon19:46 – 20:41
- 3♄︎ Saturn20:41 – 21:37
- 4♃︎ Jupiter21:37 – 22:32
- 5♂︎ Mars22:32 – 23:28
- 6☉︎ Sun23:28 – 00:23
- 7♀︎ Venus00:23 – 01:19
- 8☿︎ Mercury01:19 – 02:15
- 9☽︎ Moon02:15 – 03:10
- 10♄︎ Saturn03:10 – 04:06
- 11♃︎ Jupiter04:06 – 05:01
- 12♂︎ Mars05:01 – 05:57
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Saturday, 12 September 2026, the Sun rises at 05:55 and sets at 18:50: the day lasts 12h 55m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:57, lasts 11h 07m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Saturn, from 05:55 to 07:00: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.