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 Tuesday, 15 December 2026: day of Mars
- Sunrise
- 07:34
- Sunset
- 15:09
- Next sunrise
- 07:35
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/Warsaw).
Day
- 1♂︎ Mars07:34 – 08:12
- 2☉︎ Sun08:12 – 08:50
- 3♀︎ Venus08:50 – 09:28
- 4☿︎ Mercury09:28 – 10:06
- 5☽︎ Moon10:06 – 10:44
- 6♄︎ Saturn10:44 – 11:22
- 7♃︎ Jupiter11:22 – 12:00
- 8♂︎ Mars12:00 – 12:38
- 9☉︎ Sun12:38 – 13:16
- 10♀︎ Venus13:16 – 13:53
- 11☿︎ Mercury13:53 – 14:31
- 12☽︎ Moon14:31 – 15:09
Night
- 1♄︎ Saturn15:09 – 16:31
- 2♃︎ Jupiter16:31 – 17:54
- 3♂︎ Mars17:54 – 19:16
- 4☉︎ Sun19:16 – 20:38
- 5♀︎ Venus20:38 – 22:00
- 6☿︎ Mercury22:00 – 23:22
- 7☽︎ Moon23:22 – 00:44
- 8♄︎ Saturn00:44 – 02:07
- 9♃︎ Jupiter02:07 – 03:29
- 10♂︎ Mars03:29 – 04:51
- 11☉︎ Sun04:51 – 06:13
- 12♀︎ Venus06:13 – 07:35
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Tuesday, 15 December 2026, the Sun rises at 07:34 and sets at 15:09: the day lasts 7h 35m, that is twelve day hours of 38 min. The night, until the next sunrise at 07:35, lasts 16h 26m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mars, from 07:34 to 08:12: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.