Planetary hours
in Cheongju-si.
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, 31 December 2025: day of Mercury
- Sunrise
- 07:42
- Sunset
- 17:23
- Next sunrise
- 07:42
A day hour lasts 48 min; a night hour, 1h 12m. Local time (Asia/Seoul).
Day
- 1☿︎ Mercury07:42 – 08:30
- 2☽︎ Moon08:30 – 09:19
- 3♄︎ Saturn09:19 – 10:07
- 4♃︎ Jupiter10:07 – 10:56
- 5♂︎ Mars10:56 – 11:44
- 6☉︎ Sun11:44 – 12:33
- 7♀︎ Venus12:33 – 13:21
- 8☿︎ Mercury13:21 – 14:09
- 9☽︎ Moon14:09 – 14:58
- 10♄︎ Saturn14:58 – 15:46
- 11♃︎ Jupiter15:46 – 16:35
- 12♂︎ Mars16:35 – 17:23
Night
- 1☉︎ Sun17:23 – 18:35
- 2♀︎ Venus18:35 – 19:47
- 3☿︎ Mercury19:47 – 20:58
- 4☽︎ Moon20:58 – 22:10
- 5♄︎ Saturn22:10 – 23:21
- 6♃︎ Jupiter23:21 – 00:33
- 7♂︎ Mars00:33 – 01:44
- 8☉︎ Sun01:44 – 02:56
- 9♀︎ Venus02:56 – 04:07
- 10☿︎ Mercury04:07 – 05:19
- 11☽︎ Moon05:19 – 06:30
- 12♄︎ Saturn06:30 – 07:42
Other cities · South Korea
Questions
How are the planetary hours calculated in Cheongju-si?
On Wednesday, 31 December 2025, the Sun rises at 07:42 and sets at 17:23: the day lasts 9h 42m, that is twelve day hours of 48 min. The night, until the next sunrise at 07:42, lasts 14h 18m: twelve night hours of 1h 12m.
Which planet rules the first hour that day?
Mercury, from 07:42 to 08:30: 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.