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, 19 April 2026: day of the Sun
- Sunrise
- 05:19
- Sunset
- 19:34
- Next sunrise
- 05:17
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Warsaw).
Day
- 1☉︎ Sun05:19 – 06:30
- 2♀︎ Venus06:30 – 07:42
- 3☿︎ Mercury07:42 – 08:53
- 4☽︎ Moon08:53 – 10:04
- 5♄︎ Saturn10:04 – 11:15
- 6♃︎ Jupiter11:15 – 12:27
- 7♂︎ Mars12:27 – 13:38
- 8☉︎ Sun13:38 – 14:49
- 9♀︎ Venus14:49 – 16:00
- 10☿︎ Mercury16:00 – 17:12
- 11☽︎ Moon17:12 – 18:23
- 12♄︎ Saturn18:23 – 19:34
Night
- 1♃︎ Jupiter19:34 – 20:23
- 2♂︎ Mars20:23 – 21:11
- 3☉︎ Sun21:11 – 22:00
- 4♀︎ Venus22:00 – 22:48
- 5☿︎ Mercury22:48 – 23:37
- 6☽︎ Moon23:37 – 00:25
- 7♄︎ Saturn00:25 – 01:14
- 8♃︎ Jupiter01:14 – 02:03
- 9♂︎ Mars02:03 – 02:51
- 10☉︎ Sun02:51 – 03:40
- 11♀︎ Venus03:40 – 04:28
- 12☿︎ Mercury04:28 – 05:17
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Sunday, 19 April 2026, the Sun rises at 05:19 and sets at 19:34: the day lasts 14h 15m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 05:17, lasts 9h 43m: twelve night hours of 49 min.
Which planet rules the first hour that day?
The Sun, from 05:19 to 06:30: 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.