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 Wednesday, 28 May 2025: day of Mercury
- Sunrise
- 04:10
- Sunset
- 20:39
- Next sunrise
- 04:09
A day hour lasts 1h 22m; a night hour, 38 min. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury04:10 – 05:33
- 2☽︎ Moon05:33 – 06:55
- 3♄︎ Saturn06:55 – 08:18
- 4♃︎ Jupiter08:18 – 09:40
- 5♂︎ Mars09:40 – 11:02
- 6☉︎ Sun11:02 – 12:25
- 7♀︎ Venus12:25 – 13:47
- 8☿︎ Mercury13:47 – 15:09
- 9☽︎ Moon15:09 – 16:32
- 10♄︎ Saturn16:32 – 17:54
- 11♃︎ Jupiter17:54 – 19:16
- 12♂︎ Mars19:16 – 20:39
Night
- 1☉︎ Sun20:39 – 21:16
- 2♀︎ Venus21:16 – 21:54
- 3☿︎ Mercury21:54 – 22:31
- 4☽︎ Moon22:31 – 23:09
- 5♄︎ Saturn23:09 – 23:47
- 6♃︎ Jupiter23:47 – 00:24
- 7♂︎ Mars00:24 – 01:02
- 8☉︎ Sun01:02 – 01:39
- 9♀︎ Venus01:39 – 02:17
- 10☿︎ Mercury02:17 – 02:54
- 11☽︎ Moon02:54 – 03:32
- 12♄︎ Saturn03:32 – 04:09
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 28 May 2025, the Sun rises at 04:10 and sets at 20:39: the day lasts 16h 28m, that is twelve day hours of 1h 22m. The night, until the next sunrise at 04:09, lasts 7h 31m: twelve night hours of 38 min.
Which planet rules the first hour that day?
Mercury, from 04:10 to 05:33: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.