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, 17 April 2026: day of Venus
- Sunrise
- 05:29
- Sunset
- 19:12
- Next sunrise
- 05:27
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Europe/Moscow).
Day
- 1♀︎ Venus05:29 – 06:38
- 2☿︎ Mercury06:38 – 07:46
- 3☽︎ Moon07:46 – 08:55
- 4♄︎ Saturn08:55 – 10:04
- 5♃︎ Jupiter10:04 – 11:12
- 6♂︎ Mars11:12 – 12:21
- 7☉︎ Sun12:21 – 13:29
- 8♀︎ Venus13:29 – 14:38
- 9☿︎ Mercury14:38 – 15:46
- 10☽︎ Moon15:46 – 16:55
- 11♄︎ Saturn16:55 – 18:04
- 12♃︎ Jupiter18:04 – 19:12
Night
- 1♂︎ Mars19:12 – 20:03
- 2☉︎ Sun20:03 – 20:55
- 3♀︎ Venus20:55 – 21:46
- 4☿︎ Mercury21:46 – 22:37
- 5☽︎ Moon22:37 – 23:29
- 6♄︎ Saturn23:29 – 00:20
- 7♃︎ Jupiter00:20 – 01:11
- 8♂︎ Mars01:11 – 02:02
- 9☉︎ Sun02:02 – 02:54
- 10♀︎ Venus02:54 – 03:45
- 11☿︎ Mercury03:45 – 04:36
- 12☽︎ Moon04:36 – 05:27
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Questions
How are the planetary hours calculated in Rostov-on-Don?
On Friday, 17 April 2026, the Sun rises at 05:29 and sets at 19:12: the day lasts 13h 43m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 05:27, lasts 10h 15m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Venus, from 05:29 to 06:38: 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.