Planetary hours
in Beijing.
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 Friday, 19 December 2025: day of Venus
- Sunrise
- 07:31
- Sunset
- 16:51
- Next sunrise
- 07:31
A day hour lasts 47 min; a night hour, 1h 13m. Local time (Asia/Shanghai).
Day
- 1♀︎ Venus07:31 – 08:17
- 2☿︎ Mercury08:17 – 09:04
- 3☽︎ Moon09:04 – 09:51
- 4♄︎ Saturn09:51 – 10:38
- 5♃︎ Jupiter10:38 – 11:24
- 6♂︎ Mars11:24 – 12:11
- 7☉︎ Sun12:11 – 12:58
- 8♀︎ Venus12:58 – 13:44
- 9☿︎ Mercury13:44 – 14:31
- 10☽︎ Moon14:31 – 15:18
- 11♄︎ Saturn15:18 – 16:04
- 12♃︎ Jupiter16:04 – 16:51
Night
- 1♂︎ Mars16:51 – 18:04
- 2☉︎ Sun18:04 – 19:18
- 3♀︎ Venus19:18 – 20:31
- 4☿︎ Mercury20:31 – 21:45
- 5☽︎ Moon21:45 – 22:58
- 6♄︎ Saturn22:58 – 00:11
- 7♃︎ Jupiter00:11 – 01:25
- 8♂︎ Mars01:25 – 02:38
- 9☉︎ Sun02:38 – 03:51
- 10♀︎ Venus03:51 – 05:05
- 11☿︎ Mercury05:05 – 06:18
- 12☽︎ Moon06:18 – 07:31
Other cities · China
Questions
How are the planetary hours calculated in Beijing?
On Friday, 19 December 2025, the Sun rises at 07:31 and sets at 16:51: the day lasts 9h 20m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:31, lasts 14h 40m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Venus, from 07:31 to 08:17: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.