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 Saturday, 17 May 2025: day of Saturn
- Sunrise
- 04:16
- Sunset
- 21:35
- Next sunrise
- 04:14
A day hour lasts 1h 27m; a night hour, 33 min. Local time (Europe/Moscow).
Day
- 1♄︎ Saturn04:16 – 05:43
- 2♃︎ Jupiter05:43 – 07:09
- 3♂︎ Mars07:09 – 08:36
- 4☉︎ Sun08:36 – 10:02
- 5♀︎ Venus10:02 – 11:29
- 6☿︎ Mercury11:29 – 12:55
- 7☽︎ Moon12:55 – 14:22
- 8♄︎ Saturn14:22 – 15:49
- 9♃︎ Jupiter15:49 – 17:15
- 10♂︎ Mars17:15 – 18:42
- 11☉︎ Sun18:42 – 20:08
- 12♀︎ Venus20:08 – 21:35
Night
- 1☿︎ Mercury21:35 – 22:08
- 2☽︎ Moon22:08 – 22:41
- 3♄︎ Saturn22:41 – 23:15
- 4♃︎ Jupiter23:15 – 23:48
- 5♂︎ Mars23:48 – 00:21
- 6☉︎ Sun00:21 – 00:54
- 7♀︎ Venus00:54 – 01:28
- 8☿︎ Mercury01:28 – 02:01
- 9☽︎ Moon02:01 – 02:34
- 10♄︎ Saturn02:34 – 03:07
- 11♃︎ Jupiter03:07 – 03:41
- 12♂︎ Mars03:41 – 04:14
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Questions
How are the planetary hours calculated in Saint Petersburg?
On Saturday, 17 May 2025, the Sun rises at 04:16 and sets at 21:35: the day lasts 17h 19m, that is twelve day hours of 1h 27m. The night, until the next sunrise at 04:14, lasts 6h 39m: twelve night hours of 33 min.
Which planet rules the first hour that day?
Saturn, from 04:16 to 05:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.