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 Monday, 21 December 2026: day of the Moon
- Sunrise
- 08:04
- Sunset
- 16:33
- Next sunrise
- 08:05
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Moscow).
Day
- 1☽︎ Moon08:04 – 08:47
- 2♄︎ Saturn08:47 – 09:29
- 3♃︎ Jupiter09:29 – 10:11
- 4♂︎ Mars10:11 – 10:54
- 5☉︎ Sun10:54 – 11:36
- 6♀︎ Venus11:36 – 12:19
- 7☿︎ Mercury12:19 – 13:01
- 8☽︎ Moon13:01 – 13:43
- 9♄︎ Saturn13:43 – 14:26
- 10♃︎ Jupiter14:26 – 15:08
- 11♂︎ Mars15:08 – 15:51
- 12☉︎ Sun15:51 – 16:33
Night
- 1♀︎ Venus16:33 – 17:51
- 2☿︎ Mercury17:51 – 19:08
- 3☽︎ Moon19:08 – 20:26
- 4♄︎ Saturn20:26 – 21:44
- 5♃︎ Jupiter21:44 – 23:01
- 6♂︎ Mars23:01 – 00:19
- 7☉︎ Sun00:19 – 01:37
- 8♀︎ Venus01:37 – 02:54
- 9☿︎ Mercury02:54 – 04:12
- 10☽︎ Moon04:12 – 05:29
- 11♄︎ Saturn05:29 – 06:47
- 12♃︎ Jupiter06:47 – 08:05
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Questions
How are the planetary hours calculated in Rostov-on-Don?
On Monday, 21 December 2026, the Sun rises at 08:04 and sets at 16:33: the day lasts 8h 29m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:05, lasts 15h 32m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
The Moon, from 08:04 to 08:47: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.