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 Sunday, 21 December 2025: day of the Sun
- Sunrise
- 09:39
- Sunset
- 17:05
- Next sunrise
- 09:40
A day hour lasts 37 min; a night hour, 1h 23m. Local time (Europe/Minsk).
Day
- 1☉︎ Sun09:39 – 10:16
- 2♀︎ Venus10:16 – 10:54
- 3☿︎ Mercury10:54 – 11:31
- 4☽︎ Moon11:31 – 12:08
- 5♄︎ Saturn12:08 – 12:45
- 6♃︎ Jupiter12:45 – 13:22
- 7♂︎ Mars13:22 – 14:00
- 8☉︎ Sun14:00 – 14:37
- 9♀︎ Venus14:37 – 15:14
- 10☿︎ Mercury15:14 – 15:51
- 11☽︎ Moon15:51 – 16:28
- 12♄︎ Saturn16:28 – 17:05
Night
- 1♃︎ Jupiter17:05 – 18:28
- 2♂︎ Mars18:28 – 19:51
- 3☉︎ Sun19:51 – 21:14
- 4♀︎ Venus21:14 – 22:37
- 5☿︎ Mercury22:37 – 00:00
- 6☽︎ Moon00:00 – 01:23
- 7♄︎ Saturn01:23 – 02:45
- 8♃︎ Jupiter02:45 – 04:08
- 9♂︎ Mars04:08 – 05:31
- 10☉︎ Sun05:31 – 06:54
- 11♀︎ Venus06:54 – 08:17
- 12☿︎ Mercury08:17 – 09:40
Questions
How are the planetary hours calculated in Hrodna?
On Sunday, 21 December 2025, the Sun rises at 09:39 and sets at 17:05: the day lasts 7h 26m, that is twelve day hours of 37 min. The night, until the next sunrise at 09:40, lasts 16h 34m: twelve night hours of 1h 23m.
Which planet rules the first hour that day?
The Sun, from 09:39 to 10:16: 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.