Planetary hours
in Seongnam-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, 12 August 2026: day of Mercury
- Sunrise
- 05:44
- Sunset
- 19:27
- Next sunrise
- 05:45
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Asia/Seoul).
Day
- 1☿︎ Mercury05:44 – 06:53
- 2☽︎ Moon06:53 – 08:01
- 3♄︎ Saturn08:01 – 09:10
- 4♃︎ Jupiter09:10 – 10:19
- 5♂︎ Mars10:19 – 11:27
- 6☉︎ Sun11:27 – 12:36
- 7♀︎ Venus12:36 – 13:44
- 8☿︎ Mercury13:44 – 14:53
- 9☽︎ Moon14:53 – 16:02
- 10♄︎ Saturn16:02 – 17:10
- 11♃︎ Jupiter17:10 – 18:19
- 12♂︎ Mars18:19 – 19:27
Night
- 1☉︎ Sun19:27 – 20:19
- 2♀︎ Venus20:19 – 21:10
- 3☿︎ Mercury21:10 – 22:02
- 4☽︎ Moon22:02 – 22:53
- 5♄︎ Saturn22:53 – 23:45
- 6♃︎ Jupiter23:45 – 00:36
- 7♂︎ Mars00:36 – 01:28
- 8☉︎ Sun01:28 – 02:19
- 9♀︎ Venus02:19 – 03:11
- 10☿︎ Mercury03:11 – 04:02
- 11☽︎ Moon04:02 – 04:53
- 12♄︎ Saturn04:53 – 05:45
Other cities · South Korea
Questions
How are the planetary hours calculated in Seongnam-si?
On Wednesday, 12 August 2026, the Sun rises at 05:44 and sets at 19:27: the day lasts 13h 43m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 05:45, lasts 10h 17m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Mercury, from 05:44 to 06:53: 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.