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 Saturday, 16 August 2025: day of Saturn
- Sunrise
- 05:19
- Sunset
- 19:30
- Next sunrise
- 05:20
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Moscow).
Day
- 1♄︎ Saturn05:19 – 06:30
- 2♃︎ Jupiter06:30 – 07:41
- 3♂︎ Mars07:41 – 08:52
- 4☉︎ Sun08:52 – 10:03
- 5♀︎ Venus10:03 – 11:14
- 6☿︎ Mercury11:14 – 12:24
- 7☽︎ Moon12:24 – 13:35
- 8♄︎ Saturn13:35 – 14:46
- 9♃︎ Jupiter14:46 – 15:57
- 10♂︎ Mars15:57 – 17:08
- 11☉︎ Sun17:08 – 18:19
- 12♀︎ Venus18:19 – 19:30
Night
- 1☿︎ Mercury19:30 – 20:19
- 2☽︎ Moon20:19 – 21:09
- 3♄︎ Saturn21:09 – 21:58
- 4♃︎ Jupiter21:58 – 22:47
- 5♂︎ Mars22:47 – 23:36
- 6☉︎ Sun23:36 – 00:25
- 7♀︎ Venus00:25 – 01:14
- 8☿︎ Mercury01:14 – 02:03
- 9☽︎ Moon02:03 – 02:53
- 10♄︎ Saturn02:53 – 03:42
- 11♃︎ Jupiter03:42 – 04:31
- 12♂︎ Mars04:31 – 05:20
Other cities · Russia
Questions
How are the planetary hours calculated in Rostov-on-Don?
On Saturday, 16 August 2025, the Sun rises at 05:19 and sets at 19:30: the day lasts 14h 12m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 05:20, lasts 9h 50m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Saturn, from 05:19 to 06:30: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.