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 Sunday, 23 August 2026: day of the Sun
- Sunrise
- 05:21
- Sunset
- 19:37
- Next sunrise
- 05:23
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Warsaw).
Day
- 1☉︎ Sun05:21 – 06:32
- 2♀︎ Venus06:32 – 07:44
- 3☿︎ Mercury07:44 – 08:55
- 4☽︎ Moon08:55 – 10:06
- 5♄︎ Saturn10:06 – 11:18
- 6♃︎ Jupiter11:18 – 12:29
- 7♂︎ Mars12:29 – 13:40
- 8☉︎ Sun13:40 – 14:52
- 9♀︎ Venus14:52 – 16:03
- 10☿︎ Mercury16:03 – 17:14
- 11☽︎ Moon17:14 – 18:26
- 12♄︎ Saturn18:26 – 19:37
Night
- 1♃︎ Jupiter19:37 – 20:26
- 2♂︎ Mars20:26 – 21:15
- 3☉︎ Sun21:15 – 22:03
- 4♀︎ Venus22:03 – 22:52
- 5☿︎ Mercury22:52 – 23:41
- 6☽︎ Moon23:41 – 00:30
- 7♄︎ Saturn00:30 – 01:19
- 8♃︎ Jupiter01:19 – 02:07
- 9♂︎ Mars02:07 – 02:56
- 10☉︎ Sun02:56 – 03:45
- 11♀︎ Venus03:45 – 04:34
- 12☿︎ Mercury04:34 – 05:23
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Sunday, 23 August 2026, the Sun rises at 05:21 and sets at 19:37: the day lasts 14h 16m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 05:23, lasts 9h 46m: twelve night hours of 49 min.
Which planet rules the first hour that day?
The Sun, from 05:21 to 06:32: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.