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, 17 September 2026: day of Jupiter
- Sunrise
- 06:30
- Sunset
- 19:14
- Next sunrise
- 06:33
A day hour lasts 1h 04m; a night hour, 57 min. Local time (Europe/Moscow).
Day
- 1♃︎ Jupiter06:30 – 07:34
- 2♂︎ Mars07:34 – 08:38
- 3☉︎ Sun08:38 – 09:41
- 4♀︎ Venus09:41 – 10:45
- 5☿︎ Mercury10:45 – 11:48
- 6☽︎ Moon11:48 – 12:52
- 7♄︎ Saturn12:52 – 13:56
- 8♃︎ Jupiter13:56 – 14:59
- 9♂︎ Mars14:59 – 16:03
- 10☉︎ Sun16:03 – 17:06
- 11♀︎ Venus17:06 – 18:10
- 12☿︎ Mercury18:10 – 19:14
Night
- 1☽︎ Moon19:14 – 20:10
- 2♄︎ Saturn20:10 – 21:07
- 3♃︎ Jupiter21:07 – 22:03
- 4♂︎ Mars22:03 – 23:00
- 5☉︎ Sun23:00 – 23:57
- 6♀︎ Venus23:57 – 00:53
- 7☿︎ Mercury00:53 – 01:50
- 8☽︎ Moon01:50 – 02:46
- 9♄︎ Saturn02:46 – 03:43
- 10♃︎ Jupiter03:43 – 04:40
- 11♂︎ Mars04:40 – 05:36
- 12☉︎ Sun05:36 – 06:33
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Questions
How are the planetary hours calculated in Saint Petersburg?
On Thursday, 17 September 2026, the Sun rises at 06:30 and sets at 19:14: the day lasts 12h 43m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:33, lasts 11h 19m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Jupiter, from 06:30 to 07:34: 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.