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 Friday, 22 May 2026: day of Venus
- Sunrise
- 04:37
- Sunset
- 19:58
- Next sunrise
- 04:36
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Moscow).
Day
- 1♀︎ Venus04:37 – 05:54
- 2☿︎ Mercury05:54 – 07:11
- 3☽︎ Moon07:11 – 08:27
- 4♄︎ Saturn08:27 – 09:44
- 5♃︎ Jupiter09:44 – 11:01
- 6♂︎ Mars11:01 – 12:18
- 7☉︎ Sun12:18 – 13:34
- 8♀︎ Venus13:34 – 14:51
- 9☿︎ Mercury14:51 – 16:08
- 10☽︎ Moon16:08 – 17:25
- 11♄︎ Saturn17:25 – 18:42
- 12♃︎ Jupiter18:42 – 19:58
Night
- 1♂︎ Mars19:58 – 20:41
- 2☉︎ Sun20:41 – 21:25
- 3♀︎ Venus21:25 – 22:08
- 4☿︎ Mercury22:08 – 22:51
- 5☽︎ Moon22:51 – 23:34
- 6♄︎ Saturn23:34 – 00:17
- 7♃︎ Jupiter00:17 – 01:00
- 8♂︎ Mars01:00 – 01:43
- 9☉︎ Sun01:43 – 02:27
- 10♀︎ Venus02:27 – 03:10
- 11☿︎ Mercury03:10 – 03:53
- 12☽︎ Moon03:53 – 04:36
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Questions
How are the planetary hours calculated in Rostov-on-Don?
On Friday, 22 May 2026, the Sun rises at 04:37 and sets at 19:58: the day lasts 15h 21m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 04:36, lasts 8h 38m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Venus, from 04:37 to 05:54: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.