Planetary hours
in Rostov-on-Don.
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, 9 December 2026: day of Mercury
- Sunrise
- 07:55
- Sunset
- 16:31
- Next sunrise
- 07:56
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Moscow).
Day
- 1☿︎ Mercury07:55 – 08:38
- 2☽︎ Moon08:38 – 09:21
- 3♄︎ Saturn09:21 – 10:04
- 4♃︎ Jupiter10:04 – 10:47
- 5♂︎ Mars10:47 – 11:30
- 6☉︎ Sun11:30 – 12:13
- 7♀︎ Venus12:13 – 12:56
- 8☿︎ Mercury12:56 – 13:39
- 9☽︎ Moon13:39 – 14:22
- 10♄︎ Saturn14:22 – 15:05
- 11♃︎ Jupiter15:05 – 15:48
- 12♂︎ Mars15:48 – 16:31
Night
- 1☉︎ Sun16:31 – 17:48
- 2♀︎ Venus17:48 – 19:05
- 3☿︎ Mercury19:05 – 20:22
- 4☽︎ Moon20:22 – 21:39
- 5♄︎ Saturn21:39 – 22:56
- 6♃︎ Jupiter22:56 – 00:13
- 7♂︎ Mars00:13 – 01:30
- 8☉︎ Sun01:30 – 02:48
- 9♀︎ Venus02:48 – 04:05
- 10☿︎ Mercury04:05 – 05:22
- 11☽︎ Moon05:22 – 06:39
- 12♄︎ Saturn06:39 – 07:56
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Questions
How are the planetary hours calculated in Rostov-on-Don?
On Wednesday, 9 December 2026, the Sun rises at 07:55 and sets at 16:31: the day lasts 8h 36m, that is twelve day hours of 43 min. The night, until the next sunrise at 07:56, lasts 15h 25m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mercury, from 07:55 to 08:38: 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.