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 Sunday, 10 August 2025: day of the Sun
- Sunrise
- 04:59
- Sunset
- 20:04
- Next sunrise
- 05:01
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/Warsaw).
Day
- 1☉︎ Sun04:59 – 06:15
- 2♀︎ Venus06:15 – 07:30
- 3☿︎ Mercury07:30 – 08:45
- 4☽︎ Moon08:45 – 10:01
- 5♄︎ Saturn10:01 – 11:16
- 6♃︎ Jupiter11:16 – 12:32
- 7♂︎ Mars12:32 – 13:47
- 8☉︎ Sun13:47 – 15:02
- 9♀︎ Venus15:02 – 16:18
- 10☿︎ Mercury16:18 – 17:33
- 11☽︎ Moon17:33 – 18:49
- 12♄︎ Saturn18:49 – 20:04
Night
- 1♃︎ Jupiter20:04 – 20:49
- 2♂︎ Mars20:49 – 21:34
- 3☉︎ Sun21:34 – 22:18
- 4♀︎ Venus22:18 – 23:03
- 5☿︎ Mercury23:03 – 23:48
- 6☽︎ Moon23:48 – 00:32
- 7♄︎ Saturn00:32 – 01:17
- 8♃︎ Jupiter01:17 – 02:02
- 9♂︎ Mars02:02 – 02:47
- 10☉︎ Sun02:47 – 03:31
- 11♀︎ Venus03:31 – 04:16
- 12☿︎ Mercury04:16 – 05:01
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Sunday, 10 August 2025, the Sun rises at 04:59 and sets at 20:04: the day lasts 15h 05m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 05:01, lasts 8h 57m: twelve night hours of 45 min.
Which planet rules the first hour that day?
The Sun, from 04:59 to 06:15: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.