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 Tuesday, 9 December 2025: day of Mars
- Sunrise
- 09:47
- Sunset
- 15:54
- Next sunrise
- 09:49
A day hour lasts 31 min; a night hour, 1h 30m. Local time (Europe/Moscow).
Day
- 1♂︎ Mars09:47 – 10:18
- 2☉︎ Sun10:18 – 10:48
- 3♀︎ Venus10:48 – 11:19
- 4☿︎ Mercury11:19 – 11:49
- 5☽︎ Moon11:49 – 12:20
- 6♄︎ Saturn12:20 – 12:51
- 7♃︎ Jupiter12:51 – 13:21
- 8♂︎ Mars13:21 – 13:52
- 9☉︎ Sun13:52 – 14:22
- 10♀︎ Venus14:22 – 14:53
- 11☿︎ Mercury14:53 – 15:23
- 12☽︎ Moon15:23 – 15:54
Night
- 1♄︎ Saturn15:54 – 17:23
- 2♃︎ Jupiter17:23 – 18:53
- 3♂︎ Mars18:53 – 20:23
- 4☉︎ Sun20:23 – 21:52
- 5♀︎ Venus21:52 – 23:22
- 6☿︎ Mercury23:22 – 00:51
- 7☽︎ Moon00:51 – 02:21
- 8♄︎ Saturn02:21 – 03:50
- 9♃︎ Jupiter03:50 – 05:20
- 10♂︎ Mars05:20 – 06:49
- 11☉︎ Sun06:49 – 08:19
- 12♀︎ Venus08:19 – 09:49
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Questions
How are the planetary hours calculated in Saint Petersburg?
On Tuesday, 9 December 2025, the Sun rises at 09:47 and sets at 15:54: the day lasts 6h 07m, that is twelve day hours of 31 min. The night, until the next sunrise at 09:49, lasts 17h 55m: twelve night hours of 1h 30m.
Which planet rules the first hour that day?
Mars, from 09:47 to 10:18: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.