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, 29 October 2025: day of Mercury
- Sunrise
- 06:19
- Sunset
- 16:01
- Next sunrise
- 06:21
A day hour lasts 48 min; a night hour, 1h 12m. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury06:19 – 07:08
- 2☽︎ Moon07:08 – 07:56
- 3♄︎ Saturn07:56 – 08:45
- 4♃︎ Jupiter08:45 – 09:33
- 5♂︎ Mars09:33 – 10:22
- 6☉︎ Sun10:22 – 11:10
- 7♀︎ Venus11:10 – 11:59
- 8☿︎ Mercury11:59 – 12:47
- 9☽︎ Moon12:47 – 13:36
- 10♄︎ Saturn13:36 – 14:24
- 11♃︎ Jupiter14:24 – 15:12
- 12♂︎ Mars15:12 – 16:01
Night
- 1☉︎ Sun16:01 – 17:13
- 2♀︎ Venus17:13 – 18:24
- 3☿︎ Mercury18:24 – 19:36
- 4☽︎ Moon19:36 – 20:48
- 5♄︎ Saturn20:48 – 21:59
- 6♃︎ Jupiter21:59 – 23:11
- 7♂︎ Mars23:11 – 00:23
- 8☉︎ Sun00:23 – 01:35
- 9♀︎ Venus01:35 – 02:46
- 10☿︎ Mercury02:46 – 03:58
- 11☽︎ Moon03:58 – 05:10
- 12♄︎ Saturn05:10 – 06:21
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 29 October 2025, the Sun rises at 06:19 and sets at 16:01: the day lasts 9h 41m, that is twelve day hours of 48 min. The night, until the next sunrise at 06:21, lasts 14h 20m: twelve night hours of 1h 12m.
Which planet rules the first hour that day?
Mercury, from 06:19 to 07:08: 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.