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, 23 July 2025: day of Mercury
- Sunrise
- 04:49
- Sunset
- 20:05
- Next sunrise
- 04:50
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/Moscow).
Day
- 1☿︎ Mercury04:49 – 06:05
- 2☽︎ Moon06:05 – 07:21
- 3♄︎ Saturn07:21 – 08:38
- 4♃︎ Jupiter08:38 – 09:54
- 5♂︎ Mars09:54 – 11:10
- 6☉︎ Sun11:10 – 12:27
- 7♀︎ Venus12:27 – 13:43
- 8☿︎ Mercury13:43 – 15:00
- 9☽︎ Moon15:00 – 16:16
- 10♄︎ Saturn16:16 – 17:32
- 11♃︎ Jupiter17:32 – 18:49
- 12♂︎ Mars18:49 – 20:05
Night
- 1☉︎ Sun20:05 – 20:49
- 2♀︎ Venus20:49 – 21:33
- 3☿︎ Mercury21:33 – 22:16
- 4☽︎ Moon22:16 – 23:00
- 5♄︎ Saturn23:00 – 23:44
- 6♃︎ Jupiter23:44 – 00:27
- 7♂︎ Mars00:27 – 01:11
- 8☉︎ Sun01:11 – 01:55
- 9♀︎ Venus01:55 – 02:39
- 10☿︎ Mercury02:39 – 03:22
- 11☽︎ Moon03:22 – 04:06
- 12♄︎ Saturn04:06 – 04:50
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Questions
How are the planetary hours calculated in Rostov-on-Don?
On Wednesday, 23 July 2025, the Sun rises at 04:49 and sets at 20:05: the day lasts 15h 16m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 04:50, lasts 8h 45m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Mercury, from 04:49 to 06:05: 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.