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 Tuesday, 21 July 2026: day of Mars
- Sunrise
- 04:46
- Sunset
- 20:07
- Next sunrise
- 04:47
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Moscow).
Day
- 1♂︎ Mars04:46 – 06:03
- 2☉︎ Sun06:03 – 07:20
- 3♀︎ Venus07:20 – 08:36
- 4☿︎ Mercury08:36 – 09:53
- 5☽︎ Moon09:53 – 11:10
- 6♄︎ Saturn11:10 – 12:27
- 7♃︎ Jupiter12:27 – 13:44
- 8♂︎ Mars13:44 – 15:00
- 9☉︎ Sun15:00 – 16:17
- 10♀︎ Venus16:17 – 17:34
- 11☿︎ Mercury17:34 – 18:51
- 12☽︎ Moon18:51 – 20:07
Night
- 1♄︎ Saturn20:07 – 20:51
- 2♃︎ Jupiter20:51 – 21:34
- 3♂︎ Mars21:34 – 22:17
- 4☉︎ Sun22:17 – 23:01
- 5♀︎ Venus23:01 – 23:44
- 6☿︎ Mercury23:44 – 00:27
- 7☽︎ Moon00:27 – 01:11
- 8♄︎ Saturn01:11 – 01:54
- 9♃︎ Jupiter01:54 – 02:37
- 10♂︎ Mars02:37 – 03:21
- 11☉︎ Sun03:21 – 04:04
- 12♀︎ Venus04:04 – 04:47
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Questions
How are the planetary hours calculated in Rostov-on-Don?
On Tuesday, 21 July 2026, the Sun rises at 04:46 and sets at 20:07: the day lasts 15h 21m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 04:47, lasts 8h 40m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Mars, from 04:46 to 06:03: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.