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, 9 July 2025: day of Mercury
- Sunrise
- 04:34
- Sunset
- 20:17
- Next sunrise
- 04:35
A day hour lasts 1h 19m; a night hour, 42 min. Local time (Europe/Moscow).
Day
- 1☿︎ Mercury04:34 – 05:53
- 2☽︎ Moon05:53 – 07:12
- 3♄︎ Saturn07:12 – 08:30
- 4♃︎ Jupiter08:30 – 09:49
- 5♂︎ Mars09:49 – 11:07
- 6☉︎ Sun11:07 – 12:26
- 7♀︎ Venus12:26 – 13:44
- 8☿︎ Mercury13:44 – 15:03
- 9☽︎ Moon15:03 – 16:21
- 10♄︎ Saturn16:21 – 17:40
- 11♃︎ Jupiter17:40 – 18:58
- 12♂︎ Mars18:58 – 20:17
Night
- 1☉︎ Sun20:17 – 20:58
- 2♀︎ Venus20:58 – 21:40
- 3☿︎ Mercury21:40 – 22:22
- 4☽︎ Moon22:22 – 23:03
- 5♄︎ Saturn23:03 – 23:45
- 6♃︎ Jupiter23:45 – 00:26
- 7♂︎ Mars00:26 – 01:08
- 8☉︎ Sun01:08 – 01:49
- 9♀︎ Venus01:49 – 02:31
- 10☿︎ Mercury02:31 – 03:12
- 11☽︎ Moon03:12 – 03:54
- 12♄︎ Saturn03:54 – 04:35
Other cities · Russia
Questions
How are the planetary hours calculated in Rostov-on-Don?
On Wednesday, 9 July 2025, the Sun rises at 04:34 and sets at 20:17: the day lasts 15h 42m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 04:35, lasts 8h 18m: twelve night hours of 42 min.
Which planet rules the first hour that day?
Mercury, from 04:34 to 05:53: 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.