Planetary hours
in Changwon.
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 Thursday, 18 December 2025: day of Jupiter
- Sunrise
- 07:28
- Sunset
- 17:15
- Next sunrise
- 07:28
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Asia/Seoul).
Day
- 1♃︎ Jupiter07:28 – 08:17
- 2♂︎ Mars08:17 – 09:06
- 3☉︎ Sun09:06 – 09:54
- 4♀︎ Venus09:54 – 10:43
- 5☿︎ Mercury10:43 – 11:32
- 6☽︎ Moon11:32 – 12:21
- 7♄︎ Saturn12:21 – 13:10
- 8♃︎ Jupiter13:10 – 13:59
- 9♂︎ Mars13:59 – 14:48
- 10☉︎ Sun14:48 – 15:37
- 11♀︎ Venus15:37 – 16:26
- 12☿︎ Mercury16:26 – 17:15
Night
- 1☽︎ Moon17:15 – 18:26
- 2♄︎ Saturn18:26 – 19:37
- 3♃︎ Jupiter19:37 – 20:48
- 4♂︎ Mars20:48 – 21:59
- 5☉︎ Sun21:59 – 23:10
- 6♀︎ Venus23:10 – 00:22
- 7☿︎ Mercury00:22 – 01:33
- 8☽︎ Moon01:33 – 02:44
- 9♄︎ Saturn02:44 – 03:55
- 10♃︎ Jupiter03:55 – 05:06
- 11♂︎ Mars05:06 – 06:17
- 12☉︎ Sun06:17 – 07:28
Other cities · South Korea
Questions
How are the planetary hours calculated in Changwon?
On Thursday, 18 December 2025, the Sun rises at 07:28 and sets at 17:15: the day lasts 9h 47m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:28, lasts 14h 13m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Jupiter, from 07:28 to 08:17: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.