Planetary hours
in Saint Petersburg.
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 Thursday, 25 December 2025: day of Jupiter
- Sunrise
- 10:01
- Sunset
- 15:56
- Next sunrise
- 10:01
A day hour lasts 30 min; a night hour, 1h 30m. Local time (Europe/Moscow).
Day
- 1♃︎ Jupiter10:01 – 10:31
- 2♂︎ Mars10:31 – 11:00
- 3☉︎ Sun11:00 – 11:30
- 4♀︎ Venus11:30 – 11:59
- 5☿︎ Mercury11:59 – 12:29
- 6☽︎ Moon12:29 – 12:58
- 7♄︎ Saturn12:58 – 13:28
- 8♃︎ Jupiter13:28 – 13:58
- 9♂︎ Mars13:58 – 14:27
- 10☉︎ Sun14:27 – 14:57
- 11♀︎ Venus14:57 – 15:26
- 12☿︎ Mercury15:26 – 15:56
Night
- 1☽︎ Moon15:56 – 17:26
- 2♄︎ Saturn17:26 – 18:57
- 3♃︎ Jupiter18:57 – 20:27
- 4♂︎ Mars20:27 – 21:58
- 5☉︎ Sun21:58 – 23:28
- 6♀︎ Venus23:28 – 00:58
- 7☿︎ Mercury00:58 – 02:29
- 8☽︎ Moon02:29 – 03:59
- 9♄︎ Saturn03:59 – 05:30
- 10♃︎ Jupiter05:30 – 07:00
- 11♂︎ Mars07:00 – 08:31
- 12☉︎ Sun08:31 – 10:01
Other cities · Russia
Questions
How are the planetary hours calculated in Saint Petersburg?
On Thursday, 25 December 2025, the Sun rises at 10:01 and sets at 15:56: the day lasts 5h 55m, that is twelve day hours of 30 min. The night, until the next sunrise at 10:01, lasts 18h 05m: twelve night hours of 1h 30m.
Which planet rules the first hour that day?
Jupiter, from 10:01 to 10:31: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.