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, 12 August 2026: day of Mercury
- Sunrise
- 05:05
- Sunset
- 21:00
- Next sunrise
- 05:08
A day hour lasts 1h 20m; a night hour, 41 min. Local time (Europe/Moscow).
Day
- 1☿︎ Mercury05:05 – 06:25
- 2☽︎ Moon06:25 – 07:44
- 3♄︎ Saturn07:44 – 09:04
- 4♃︎ Jupiter09:04 – 10:23
- 5♂︎ Mars10:23 – 11:43
- 6☉︎ Sun11:43 – 13:02
- 7♀︎ Venus13:02 – 14:22
- 8☿︎ Mercury14:22 – 15:42
- 9☽︎ Moon15:42 – 17:01
- 10♄︎ Saturn17:01 – 18:21
- 11♃︎ Jupiter18:21 – 19:40
- 12♂︎ Mars19:40 – 21:00
Night
- 1☉︎ Sun21:00 – 21:40
- 2♀︎ Venus21:40 – 22:21
- 3☿︎ Mercury22:21 – 23:02
- 4☽︎ Moon23:02 – 23:42
- 5♄︎ Saturn23:42 – 00:23
- 6♃︎ Jupiter00:23 – 01:04
- 7♂︎ Mars01:04 – 01:44
- 8☉︎ Sun01:44 – 02:25
- 9♀︎ Venus02:25 – 03:06
- 10☿︎ Mercury03:06 – 03:46
- 11☽︎ Moon03:46 – 04:27
- 12♄︎ Saturn04:27 – 05:08
Other cities · Russia
Questions
How are the planetary hours calculated in Saint Petersburg?
On Wednesday, 12 August 2026, the Sun rises at 05:05 and sets at 21:00: the day lasts 15h 54m, that is twelve day hours of 1h 20m. The night, until the next sunrise at 05:08, lasts 8h 08m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Mercury, from 05:05 to 06:25: 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.