Planetary hours
in Hrodna.
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 Saturday, 13 December 2025: day of Saturn
- Sunrise
- 09:33
- Sunset
- 17:03
- Next sunrise
- 09:34
A day hour lasts 38 min; a night hour, 1h 23m. Local time (Europe/Minsk).
Day
- 1♄︎ Saturn09:33 – 10:11
- 2♃︎ Jupiter10:11 – 10:48
- 3♂︎ Mars10:48 – 11:26
- 4☉︎ Sun11:26 – 12:03
- 5♀︎ Venus12:03 – 12:41
- 6☿︎ Mercury12:41 – 13:18
- 7☽︎ Moon13:18 – 13:56
- 8♄︎ Saturn13:56 – 14:33
- 9♃︎ Jupiter14:33 – 15:11
- 10♂︎ Mars15:11 – 15:48
- 11☉︎ Sun15:48 – 16:26
- 12♀︎ Venus16:26 – 17:03
Night
- 1☿︎ Mercury17:03 – 18:26
- 2☽︎ Moon18:26 – 19:49
- 3♄︎ Saturn19:49 – 21:11
- 4♃︎ Jupiter21:11 – 22:34
- 5♂︎ Mars22:34 – 23:56
- 6☉︎ Sun23:56 – 01:19
- 7♀︎ Venus01:19 – 02:41
- 8☿︎ Mercury02:41 – 04:04
- 9☽︎ Moon04:04 – 05:27
- 10♄︎ Saturn05:27 – 06:49
- 11♃︎ Jupiter06:49 – 08:12
- 12♂︎ Mars08:12 – 09:34
Questions
How are the planetary hours calculated in Hrodna?
On Saturday, 13 December 2025, the Sun rises at 09:33 and sets at 17:03: the day lasts 7h 30m, that is twelve day hours of 38 min. The night, until the next sunrise at 09:34, lasts 16h 31m: twelve night hours of 1h 23m.
Which planet rules the first hour that day?
Saturn, from 09:33 to 10:11: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.