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, 29 April 2026: day of Mercury
- Sunrise
- 04:58
- Sunset
- 19:52
- Next sunrise
- 04:56
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/Warsaw).
Day
- 1☿︎ Mercury04:58 – 06:12
- 2☽︎ Moon06:12 – 07:27
- 3♄︎ Saturn07:27 – 08:41
- 4♃︎ Jupiter08:41 – 09:56
- 5♂︎ Mars09:56 – 11:10
- 6☉︎ Sun11:10 – 12:25
- 7♀︎ Venus12:25 – 13:39
- 8☿︎ Mercury13:39 – 14:54
- 9☽︎ Moon14:54 – 16:08
- 10♄︎ Saturn16:08 – 17:23
- 11♃︎ Jupiter17:23 – 18:37
- 12♂︎ Mars18:37 – 19:52
Night
- 1☉︎ Sun19:52 – 20:37
- 2♀︎ Venus20:37 – 21:22
- 3☿︎ Mercury21:22 – 22:08
- 4☽︎ Moon22:08 – 22:53
- 5♄︎ Saturn22:53 – 23:38
- 6♃︎ Jupiter23:38 – 00:24
- 7♂︎ Mars00:24 – 01:09
- 8☉︎ Sun01:09 – 01:54
- 9♀︎ Venus01:54 – 02:40
- 10☿︎ Mercury02:40 – 03:25
- 11☽︎ Moon03:25 – 04:10
- 12♄︎ Saturn04:10 – 04:56
Other cities · Poland
Questions
How are the planetary hours calculated in Białystok?
On Wednesday, 29 April 2026, the Sun rises at 04:58 and sets at 19:52: the day lasts 14h 54m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 04:56, lasts 9h 04m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Mercury, from 04:58 to 06:12: 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.