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 Friday, 18 December 2026: day of Venus
- Sunrise
- 09:57
- Sunset
- 15:52
- Next sunrise
- 09:58
A day hour lasts 30 min; a night hour, 1h 31m. Local time (Europe/Moscow).
Day
- 1♀︎ Venus09:57 – 10:27
- 2☿︎ Mercury10:27 – 10:57
- 3☽︎ Moon10:57 – 11:26
- 4♄︎ Saturn11:26 – 11:56
- 5♃︎ Jupiter11:56 – 12:25
- 6♂︎ Mars12:25 – 12:55
- 7☉︎ Sun12:55 – 13:24
- 8♀︎ Venus13:24 – 13:54
- 9☿︎ Mercury13:54 – 14:23
- 10☽︎ Moon14:23 – 14:53
- 11♄︎ Saturn14:53 – 15:22
- 12♃︎ Jupiter15:22 – 15:52
Night
- 1♂︎ Mars15:52 – 17:23
- 2☉︎ Sun17:23 – 18:53
- 3♀︎ Venus18:53 – 20:24
- 4☿︎ Mercury20:24 – 21:54
- 5☽︎ Moon21:54 – 23:25
- 6♄︎ Saturn23:25 – 00:55
- 7♃︎ Jupiter00:55 – 02:26
- 8♂︎ Mars02:26 – 03:56
- 9☉︎ Sun03:56 – 05:27
- 10♀︎ Venus05:27 – 06:57
- 11☿︎ Mercury06:57 – 08:28
- 12☽︎ Moon08:28 – 09:58
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Questions
How are the planetary hours calculated in Saint Petersburg?
On Friday, 18 December 2026, the Sun rises at 09:57 and sets at 15:52: the day lasts 5h 55m, that is twelve day hours of 30 min. The night, until the next sunrise at 09:58, lasts 18h 06m: twelve night hours of 1h 31m.
Which planet rules the first hour that day?
Venus, from 09:57 to 10:27: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.