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, 2 July 2025: day of Mercury
- Sunrise
- 04:05
- Sunset
- 20:56
- Next sunrise
- 04:06
A day hour lasts 1h 24m; a night hour, 36 min. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury04:05 – 05:30
- 2☽︎ Moon05:30 – 06:54
- 3♄︎ Saturn06:54 – 08:18
- 4♃︎ Jupiter08:18 – 09:42
- 5♂︎ Mars09:42 – 11:07
- 6☉︎ Sun11:07 – 12:31
- 7♀︎ Venus12:31 – 13:55
- 8☿︎ Mercury13:55 – 15:19
- 9☽︎ Moon15:19 – 16:43
- 10♄︎ Saturn16:43 – 18:08
- 11♃︎ Jupiter18:08 – 19:32
- 12♂︎ Mars19:32 – 20:56
Night
- 1☉︎ Sun20:56 – 21:32
- 2♀︎ Venus21:32 – 22:08
- 3☿︎ Mercury22:08 – 22:44
- 4☽︎ Moon22:44 – 23:19
- 5♄︎ Saturn23:19 – 23:55
- 6♃︎ Jupiter23:55 – 00:31
- 7♂︎ Mars00:31 – 01:07
- 8☉︎ Sun01:07 – 01:43
- 9♀︎ Venus01:43 – 02:19
- 10☿︎ Mercury02:19 – 02:55
- 11☽︎ Moon02:55 – 03:30
- 12♄︎ Saturn03:30 – 04:06
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 2 July 2025, the Sun rises at 04:05 and sets at 20:56: the day lasts 16h 51m, that is twelve day hours of 1h 24m. The night, until the next sunrise at 04:06, lasts 7h 10m: twelve night hours of 36 min.
Which planet rules the first hour that day?
Mercury, from 04:05 to 05:30: 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.