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, 16 December 2025: day of Mars
- Sunrise
- 09:56
- Sunset
- 15:52
- Next sunrise
- 09:57
A day hour lasts 30 min; a night hour, 1h 30m. Local time (Europe/Moscow).
Day
- 1♂︎ Mars09:56 – 10:26
- 2☉︎ Sun10:26 – 10:55
- 3♀︎ Venus10:55 – 11:25
- 4☿︎ Mercury11:25 – 11:55
- 5☽︎ Moon11:55 – 12:24
- 6♄︎ Saturn12:24 – 12:54
- 7♃︎ Jupiter12:54 – 13:24
- 8♂︎ Mars13:24 – 13:53
- 9☉︎ Sun13:53 – 14:23
- 10♀︎ Venus14:23 – 14:53
- 11☿︎ Mercury14:53 – 15:22
- 12☽︎ Moon15:22 – 15:52
Night
- 1♄︎ Saturn15:52 – 17:22
- 2♃︎ Jupiter17:22 – 18:53
- 3♂︎ Mars18:53 – 20:23
- 4☉︎ Sun20:23 – 21:54
- 5♀︎ Venus21:54 – 23:24
- 6☿︎ Mercury23:24 – 00:54
- 7☽︎ Moon00:54 – 02:25
- 8♄︎ Saturn02:25 – 03:55
- 9♃︎ Jupiter03:55 – 05:26
- 10♂︎ Mars05:26 – 06:56
- 11☉︎ Sun06:56 – 08:26
- 12♀︎ Venus08:26 – 09:57
Other cities · Russia
Questions
How are the planetary hours calculated in Saint Petersburg?
On Tuesday, 16 December 2025, the Sun rises at 09:56 and sets at 15:52: the day lasts 5h 56m, that is twelve day hours of 30 min. The night, until the next sunrise at 09:57, lasts 18h 05m: twelve night hours of 1h 30m.
Which planet rules the first hour that day?
Mars, from 09:56 to 10:26: 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.