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, 17 May 2026: day of the Sun
- Sunrise
- 04:42
- Sunset
- 19:52
- Next sunrise
- 04:41
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/Moscow).
Day
- 1☉︎ Sun04:42 – 05:58
- 2♀︎ Venus05:58 – 07:14
- 3☿︎ Mercury07:14 – 08:30
- 4☽︎ Moon08:30 – 09:46
- 5♄︎ Saturn09:46 – 11:02
- 6♃︎ Jupiter11:02 – 12:17
- 7♂︎ Mars12:17 – 13:33
- 8☉︎ Sun13:33 – 14:49
- 9♀︎ Venus14:49 – 16:05
- 10☿︎ Mercury16:05 – 17:21
- 11☽︎ Moon17:21 – 18:37
- 12♄︎ Saturn18:37 – 19:52
Night
- 1♃︎ Jupiter19:52 – 20:36
- 2♂︎ Mars20:36 – 21:21
- 3☉︎ Sun21:21 – 22:05
- 4♀︎ Venus22:05 – 22:49
- 5☿︎ Mercury22:49 – 23:33
- 6☽︎ Moon23:33 – 00:17
- 7♄︎ Saturn00:17 – 01:01
- 8♃︎ Jupiter01:01 – 01:45
- 9♂︎ Mars01:45 – 02:29
- 10☉︎ Sun02:29 – 03:13
- 11♀︎ Venus03:13 – 03:57
- 12☿︎ Mercury03:57 – 04:41
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Questions
How are the planetary hours calculated in Rostov-on-Don?
On Sunday, 17 May 2026, the Sun rises at 04:42 and sets at 19:52: the day lasts 15h 10m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 04:41, lasts 8h 49m: twelve night hours of 44 min.
Which planet rules the first hour that day?
The Sun, from 04:42 to 05:58: 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.