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 Wednesday, 24 December 2025: day of Mercury
- Sunrise
- 10:01
- Sunset
- 15:55
- Next sunrise
- 10:01
A day hour lasts 30 min; a night hour, 1h 31m. Local time (Europe/Moscow).
Day
- 1☿︎ Mercury10:01 – 10:30
- 2☽︎ Moon10:30 – 11:00
- 3♄︎ Saturn11:00 – 11:29
- 4♃︎ Jupiter11:29 – 11:59
- 5♂︎ Mars11:59 – 12:28
- 6☉︎ Sun12:28 – 12:58
- 7♀︎ Venus12:58 – 13:27
- 8☿︎ Mercury13:27 – 13:57
- 9☽︎ Moon13:57 – 14:26
- 10♄︎ Saturn14:26 – 14:56
- 11♃︎ Jupiter14:56 – 15:25
- 12♂︎ Mars15:25 – 15:55
Night
- 1☉︎ Sun15:55 – 17:26
- 2♀︎ Venus17:26 – 18:56
- 3☿︎ Mercury18:56 – 20:27
- 4☽︎ Moon20:27 – 21:57
- 5♄︎ Saturn21:57 – 23:28
- 6♃︎ Jupiter23:28 – 00:58
- 7♂︎ Mars00:58 – 02:29
- 8☉︎ Sun02:29 – 03:59
- 9♀︎ Venus03:59 – 05:30
- 10☿︎ Mercury05:30 – 07:00
- 11☽︎ Moon07:00 – 08:31
- 12♄︎ Saturn08:31 – 10:01
Other cities · Russia
Questions
How are the planetary hours calculated in Saint Petersburg?
On Wednesday, 24 December 2025, the Sun rises at 10:01 and sets at 15:55: the day lasts 5h 54m, that is twelve day hours of 30 min. The night, until the next sunrise at 10:01, lasts 18h 06m: twelve night hours of 1h 31m.
Which planet rules the first hour that day?
Mercury, from 10:01 to 10:30: 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.