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 Wednesday, 23 July 2025: day of Mercury
- Sunrise
- 04:19
- Sunset
- 21:49
- Next sunrise
- 04:21
A day hour lasts 1h 27m; a night hour, 33 min. Local time (Europe/Moscow).
Day
- 1☿︎ Mercury04:19 – 05:47
- 2☽︎ Moon05:47 – 07:14
- 3♄︎ Saturn07:14 – 08:42
- 4♃︎ Jupiter08:42 – 10:09
- 5♂︎ Mars10:09 – 11:37
- 6☉︎ Sun11:37 – 13:04
- 7♀︎ Venus13:04 – 14:31
- 8☿︎ Mercury14:31 – 15:59
- 9☽︎ Moon15:59 – 17:26
- 10♄︎ Saturn17:26 – 18:54
- 11♃︎ Jupiter18:54 – 20:21
- 12♂︎ Mars20:21 – 21:49
Night
- 1☉︎ Sun21:49 – 22:22
- 2♀︎ Venus22:22 – 22:54
- 3☿︎ Mercury22:54 – 23:27
- 4☽︎ Moon23:27 – 00:00
- 5♄︎ Saturn00:00 – 00:32
- 6♃︎ Jupiter00:32 – 01:05
- 7♂︎ Mars01:05 – 01:38
- 8☉︎ Sun01:38 – 02:11
- 9♀︎ Venus02:11 – 02:43
- 10☿︎ Mercury02:43 – 03:16
- 11☽︎ Moon03:16 – 03:49
- 12♄︎ Saturn03:49 – 04:21
Other cities · Russia
Questions
How are the planetary hours calculated in Saint Petersburg?
On Wednesday, 23 July 2025, the Sun rises at 04:19 and sets at 21:49: the day lasts 17h 30m, that is twelve day hours of 1h 27m. The night, until the next sunrise at 04:21, lasts 6h 33m: twelve night hours of 33 min.
Which planet rules the first hour that day?
Mercury, from 04:19 to 05:47: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.