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 January 2026: day of Mercury
- Sunrise
- 07:17
- Sunset
- 16:03
- Next sunrise
- 07:16
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury07:17 – 08:01
- 2☽︎ Moon08:01 – 08:45
- 3♄︎ Saturn08:45 – 09:29
- 4♃︎ Jupiter09:29 – 10:12
- 5♂︎ Mars10:12 – 10:56
- 6☉︎ Sun10:56 – 11:40
- 7♀︎ Venus11:40 – 12:24
- 8☿︎ Mercury12:24 – 13:08
- 9☽︎ Moon13:08 – 13:52
- 10♄︎ Saturn13:52 – 14:35
- 11♃︎ Jupiter14:35 – 15:19
- 12♂︎ Mars15:19 – 16:03
Night
- 1☉︎ Sun16:03 – 17:19
- 2♀︎ Venus17:19 – 18:35
- 3☿︎ Mercury18:35 – 19:51
- 4☽︎ Moon19:51 – 21:07
- 5♄︎ Saturn21:07 – 22:23
- 6♃︎ Jupiter22:23 – 23:39
- 7♂︎ Mars23:39 – 00:55
- 8☉︎ Sun00:55 – 02:11
- 9♀︎ Venus02:11 – 03:27
- 10☿︎ Mercury03:27 – 04:44
- 11☽︎ Moon04:44 – 06:00
- 12♄︎ Saturn06:00 – 07:16
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 28 January 2026, the Sun rises at 07:17 and sets at 16:03: the day lasts 8h 46m, that is twelve day hours of 44 min. The night, until the next sunrise at 07:16, lasts 15h 13m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Mercury, from 07:17 to 08:01: 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.