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, 17 June 2026: day of Mercury
- Sunrise
- 03:59
- Sunset
- 20:56
- Next sunrise
- 04:00
A day hour lasts 1h 25m; a night hour, 35 min. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury03:59 – 05:24
- 2☽︎ Moon05:24 – 06:49
- 3♄︎ Saturn06:49 – 08:14
- 4♃︎ Jupiter08:14 – 09:38
- 5♂︎ Mars09:38 – 11:03
- 6☉︎ Sun11:03 – 12:28
- 7♀︎ Venus12:28 – 13:53
- 8☿︎ Mercury13:53 – 15:17
- 9☽︎ Moon15:17 – 16:42
- 10♄︎ Saturn16:42 – 18:07
- 11♃︎ Jupiter18:07 – 19:32
- 12♂︎ Mars19:32 – 20:56
Night
- 1☉︎ Sun20:56 – 21:32
- 2♀︎ Venus21:32 – 22:07
- 3☿︎ Mercury22:07 – 22:42
- 4☽︎ Moon22:42 – 23:17
- 5♄︎ Saturn23:17 – 23:53
- 6♃︎ Jupiter23:53 – 00:28
- 7♂︎ Mars00:28 – 01:03
- 8☉︎ Sun01:03 – 01:38
- 9♀︎ Venus01:38 – 02:14
- 10☿︎ Mercury02:14 – 02:49
- 11☽︎ Moon02:49 – 03:24
- 12♄︎ Saturn03:24 – 04:00
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 17 June 2026, the Sun rises at 03:59 and sets at 20:56: the day lasts 16h 57m, that is twelve day hours of 1h 25m. The night, until the next sunrise at 04:00, lasts 7h 03m: twelve night hours of 35 min.
Which planet rules the first hour that day?
Mercury, from 03:59 to 05:24: 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.