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, 25 October 2025: day of Saturn
- Sunrise
- 07:12
- Sunset
- 17:09
- Next sunrise
- 06:14
A day hour lasts 50 min; a night hour, 1h 10m. Local time (Europe/Warsaw).
Day
- 1♄︎ Saturn07:12 – 08:02
- 2♃︎ Jupiter08:02 – 08:51
- 3♂︎ Mars08:51 – 09:41
- 4☉︎ Sun09:41 – 10:31
- 5♀︎ Venus10:31 – 11:21
- 6☿︎ Mercury11:21 – 12:10
- 7☽︎ Moon12:10 – 13:00
- 8♄︎ Saturn13:00 – 13:50
- 9♃︎ Jupiter13:50 – 14:40
- 10♂︎ Mars14:40 – 15:30
- 11☉︎ Sun15:30 – 16:19
- 12♀︎ Venus16:19 – 17:09
Night
- 1☿︎ Mercury17:09 – 18:19
- 2☽︎ Moon18:19 – 19:30
- 3♄︎ Saturn19:30 – 20:40
- 4♃︎ Jupiter20:40 – 21:51
- 5♂︎ Mars21:51 – 23:01
- 6☉︎ Sun23:01 – 00:11
- 7♀︎ Venus00:11 – 01:22
- 8☿︎ Mercury01:22 – 02:32
- 9☽︎ Moon02:32 – 02:43
- 10♄︎ Saturn02:43 – 03:53
- 11♃︎ Jupiter03:53 – 05:03
- 12♂︎ Mars05:03 – 06:14
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Saturday, 25 October 2025, the Sun rises at 07:12 and sets at 17:09: the day lasts 9h 57m, that is twelve day hours of 50 min. The night, until the next sunrise at 06:14, lasts 14h 05m: twelve night hours of 1h 10m.
Which planet rules the first hour that day?
Saturn, from 07:12 to 08:02: 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.