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, 18 February 2026: day of Mercury
- Sunrise
- 07:21
- Sunset
- 17:49
- Next sunrise
- 07:19
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/Moscow).
Day
- 1☿︎ Mercury07:21 – 08:13
- 2☽︎ Moon08:13 – 09:06
- 3♄︎ Saturn09:06 – 09:58
- 4♃︎ Jupiter09:58 – 10:50
- 5♂︎ Mars10:50 – 11:43
- 6☉︎ Sun11:43 – 12:35
- 7♀︎ Venus12:35 – 13:27
- 8☿︎ Mercury13:27 – 14:20
- 9☽︎ Moon14:20 – 15:12
- 10♄︎ Saturn15:12 – 16:04
- 11♃︎ Jupiter16:04 – 16:57
- 12♂︎ Mars16:57 – 17:49
Night
- 1☉︎ Sun17:49 – 18:56
- 2♀︎ Venus18:56 – 20:04
- 3☿︎ Mercury20:04 – 21:11
- 4☽︎ Moon21:11 – 22:19
- 5♄︎ Saturn22:19 – 23:27
- 6♃︎ Jupiter23:27 – 00:34
- 7♂︎ Mars00:34 – 01:42
- 8☉︎ Sun01:42 – 02:49
- 9♀︎ Venus02:49 – 03:57
- 10☿︎ Mercury03:57 – 05:04
- 11☽︎ Moon05:04 – 06:12
- 12♄︎ Saturn06:12 – 07:19
Other cities · Russia
Questions
How are the planetary hours calculated in Rostov-on-Don?
On Wednesday, 18 February 2026, the Sun rises at 07:21 and sets at 17:49: the day lasts 10h 28m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:19, lasts 13h 30m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mercury, from 07:21 to 08:13: 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.