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 Sunday, 20 July 2025: day of the Sun
- Sunrise
- 04:45
- Sunset
- 20:08
- Next sunrise
- 04:46
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Moscow).
Day
- 1☉︎ Sun04:45 – 06:02
- 2♀︎ Venus06:02 – 07:19
- 3☿︎ Mercury07:19 – 08:36
- 4☽︎ Moon08:36 – 09:53
- 5♄︎ Saturn09:53 – 11:10
- 6♃︎ Jupiter11:10 – 12:27
- 7♂︎ Mars12:27 – 13:44
- 8☉︎ Sun13:44 – 15:01
- 9♀︎ Venus15:01 – 16:17
- 10☿︎ Mercury16:17 – 17:34
- 11☽︎ Moon17:34 – 18:51
- 12♄︎ Saturn18:51 – 20:08
Night
- 1♃︎ Jupiter20:08 – 20:51
- 2♂︎ Mars20:51 – 21:35
- 3☉︎ Sun21:35 – 22:18
- 4♀︎ Venus22:18 – 23:01
- 5☿︎ Mercury23:01 – 23:44
- 6☽︎ Moon23:44 – 00:27
- 7♄︎ Saturn00:27 – 01:10
- 8♃︎ Jupiter01:10 – 01:54
- 9♂︎ Mars01:54 – 02:37
- 10☉︎ Sun02:37 – 03:20
- 11♀︎ Venus03:20 – 04:03
- 12☿︎ Mercury04:03 – 04:46
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Questions
How are the planetary hours calculated in Rostov-on-Don?
On Sunday, 20 July 2025, the Sun rises at 04:45 and sets at 20:08: the day lasts 15h 23m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 04:46, lasts 8h 38m: twelve night hours of 43 min.
Which planet rules the first hour that day?
The Sun, from 04:45 to 06:02: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.