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 Sunday, 7 December 2025: day of the Sun
- Sunrise
- 09:44
- Sunset
- 15:55
- Next sunrise
- 09:46
A day hour lasts 31 min; a night hour, 1h 29m. Local time (Europe/Moscow).
Day
- 1☉︎ Sun09:44 – 10:15
- 2♀︎ Venus10:15 – 10:46
- 3☿︎ Mercury10:46 – 11:17
- 4☽︎ Moon11:17 – 11:48
- 5♄︎ Saturn11:48 – 12:19
- 6♃︎ Jupiter12:19 – 12:50
- 7♂︎ Mars12:50 – 13:21
- 8☉︎ Sun13:21 – 13:52
- 9♀︎ Venus13:52 – 14:22
- 10☿︎ Mercury14:22 – 14:53
- 11☽︎ Moon14:53 – 15:24
- 12♄︎ Saturn15:24 – 15:55
Night
- 1♃︎ Jupiter15:55 – 17:24
- 2♂︎ Mars17:24 – 18:54
- 3☉︎ Sun18:54 – 20:23
- 4♀︎ Venus20:23 – 21:52
- 5☿︎ Mercury21:52 – 23:21
- 6☽︎ Moon23:21 – 00:50
- 7♄︎ Saturn00:50 – 02:20
- 8♃︎ Jupiter02:20 – 03:49
- 9♂︎ Mars03:49 – 05:18
- 10☉︎ Sun05:18 – 06:47
- 11♀︎ Venus06:47 – 08:16
- 12☿︎ Mercury08:16 – 09:46
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Questions
How are the planetary hours calculated in Saint Petersburg?
On Sunday, 7 December 2025, the Sun rises at 09:44 and sets at 15:55: the day lasts 6h 11m, that is twelve day hours of 31 min. The night, until the next sunrise at 09:46, lasts 17h 50m: twelve night hours of 1h 29m.
Which planet rules the first hour that day?
The Sun, from 09:44 to 10:15: 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.