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, 27 May 2026: day of Mercury
- Sunrise
- 04:12
- Sunset
- 20:37
- Next sunrise
- 04:11
A day hour lasts 1h 22m; a night hour, 38 min. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury04:12 – 05:34
- 2☽︎ Moon05:34 – 06:56
- 3♄︎ Saturn06:56 – 08:18
- 4♃︎ Jupiter08:18 – 09:40
- 5♂︎ Mars09:40 – 11:02
- 6☉︎ Sun11:02 – 12:24
- 7♀︎ Venus12:24 – 13:47
- 8☿︎ Mercury13:47 – 15:09
- 9☽︎ Moon15:09 – 16:31
- 10♄︎ Saturn16:31 – 17:53
- 11♃︎ Jupiter17:53 – 19:15
- 12♂︎ Mars19:15 – 20:37
Night
- 1☉︎ Sun20:37 – 21:15
- 2♀︎ Venus21:15 – 21:53
- 3☿︎ Mercury21:53 – 22:30
- 4☽︎ Moon22:30 – 23:08
- 5♄︎ Saturn23:08 – 23:46
- 6♃︎ Jupiter23:46 – 00:24
- 7♂︎ Mars00:24 – 01:02
- 8☉︎ Sun01:02 – 01:40
- 9♀︎ Venus01:40 – 02:17
- 10☿︎ Mercury02:17 – 02:55
- 11☽︎ Moon02:55 – 03:33
- 12♄︎ Saturn03:33 – 04:11
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 27 May 2026, the Sun rises at 04:12 and sets at 20:37: the day lasts 16h 25m, that is twelve day hours of 1h 22m. The night, until the next sunrise at 04:11, lasts 7h 34m: twelve night hours of 38 min.
Which planet rules the first hour that day?
Mercury, from 04:12 to 05:34: 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.