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 Thursday, 15 January 2026: day of Jupiter
- Sunrise
- 09:46
- Sunset
- 16:30
- Next sunrise
- 09:44
A day hour lasts 34 min; a night hour, 1h 26m. Local time (Europe/Moscow).
Day
- 1♃︎ Jupiter09:46 – 10:19
- 2♂︎ Mars10:19 – 10:53
- 3☉︎ Sun10:53 – 11:27
- 4♀︎ Venus11:27 – 12:00
- 5☿︎ Mercury12:00 – 12:34
- 6☽︎ Moon12:34 – 13:08
- 7♄︎ Saturn13:08 – 13:42
- 8♃︎ Jupiter13:42 – 14:15
- 9♂︎ Mars14:15 – 14:49
- 10☉︎ Sun14:49 – 15:23
- 11♀︎ Venus15:23 – 15:57
- 12☿︎ Mercury15:57 – 16:30
Night
- 1☽︎ Moon16:30 – 17:56
- 2♄︎ Saturn17:56 – 19:23
- 3♃︎ Jupiter19:23 – 20:49
- 4♂︎ Mars20:49 – 22:15
- 5☉︎ Sun22:15 – 23:41
- 6♀︎ Venus23:41 – 01:07
- 7☿︎ Mercury01:07 – 02:33
- 8☽︎ Moon02:33 – 03:59
- 9♄︎ Saturn03:59 – 05:26
- 10♃︎ Jupiter05:26 – 06:52
- 11♂︎ Mars06:52 – 08:18
- 12☉︎ Sun08:18 – 09:44
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Questions
How are the planetary hours calculated in Saint Petersburg?
On Thursday, 15 January 2026, the Sun rises at 09:46 and sets at 16:30: the day lasts 6h 45m, that is twelve day hours of 34 min. The night, until the next sunrise at 09:44, lasts 17h 14m: twelve night hours of 1h 26m.
Which planet rules the first hour that day?
Jupiter, from 09:46 to 10:19: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.