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, 6 August 2025: day of Mercury
- Sunrise
- 04:52
- Sunset
- 20:12
- Next sunrise
- 04:54
A day hour lasts 1h 17m; a night hour, 44 min. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury04:52 – 06:09
- 2☽︎ Moon06:09 – 07:26
- 3♄︎ Saturn07:26 – 08:42
- 4♃︎ Jupiter08:42 – 09:59
- 5♂︎ Mars09:59 – 11:16
- 6☉︎ Sun11:16 – 12:32
- 7♀︎ Venus12:32 – 13:49
- 8☿︎ Mercury13:49 – 15:05
- 9☽︎ Moon15:05 – 16:22
- 10♄︎ Saturn16:22 – 17:39
- 11♃︎ Jupiter17:39 – 18:55
- 12♂︎ Mars18:55 – 20:12
Night
- 1☉︎ Sun20:12 – 20:55
- 2♀︎ Venus20:55 – 21:39
- 3☿︎ Mercury21:39 – 22:22
- 4☽︎ Moon22:22 – 23:06
- 5♄︎ Saturn23:06 – 23:49
- 6♃︎ Jupiter23:49 – 00:33
- 7♂︎ Mars00:33 – 01:17
- 8☉︎ Sun01:17 – 02:00
- 9♀︎ Venus02:00 – 02:44
- 10☿︎ Mercury02:44 – 03:27
- 11☽︎ Moon03:27 – 04:11
- 12♄︎ Saturn04:11 – 04:54
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 6 August 2025, the Sun rises at 04:52 and sets at 20:12: the day lasts 15h 19m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 04:54, lasts 8h 42m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Mercury, from 04:52 to 06:09: 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.