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, 7 August 2025: day of Jupiter
- Sunrise
- 04:54
- Sunset
- 21:13
- Next sunrise
- 04:56
A day hour lasts 1h 22m; a night hour, 39 min. Local time (Europe/Moscow).
Day
- 1♃︎ Jupiter04:54 – 06:15
- 2♂︎ Mars06:15 – 07:37
- 3☉︎ Sun07:37 – 08:59
- 4♀︎ Venus08:59 – 10:20
- 5☿︎ Mercury10:20 – 11:42
- 6☽︎ Moon11:42 – 13:03
- 7♄︎ Saturn13:03 – 14:25
- 8♃︎ Jupiter14:25 – 15:46
- 9♂︎ Mars15:46 – 17:08
- 10☉︎ Sun17:08 – 18:29
- 11♀︎ Venus18:29 – 19:51
- 12☿︎ Mercury19:51 – 21:13
Night
- 1☽︎ Moon21:13 – 21:51
- 2♄︎ Saturn21:51 – 22:30
- 3♃︎ Jupiter22:30 – 23:08
- 4♂︎ Mars23:08 – 23:47
- 5☉︎ Sun23:47 – 00:26
- 6♀︎ Venus00:26 – 01:04
- 7☿︎ Mercury01:04 – 01:43
- 8☽︎ Moon01:43 – 02:22
- 9♄︎ Saturn02:22 – 03:00
- 10♃︎ Jupiter03:00 – 03:39
- 11♂︎ Mars03:39 – 04:18
- 12☉︎ Sun04:18 – 04:56
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Questions
How are the planetary hours calculated in Saint Petersburg?
On Thursday, 7 August 2025, the Sun rises at 04:54 and sets at 21:13: the day lasts 16h 19m, that is twelve day hours of 1h 22m. The night, until the next sunrise at 04:56, lasts 7h 44m: twelve night hours of 39 min.
Which planet rules the first hour that day?
Jupiter, from 04:54 to 06:15: 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.