Planetary hours
in Tuen Mun.
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 Tuesday, 16 December 2025: day of Mars
- Sunrise
- 06:56
- Sunset
- 17:42
- Next sunrise
- 06:57
A day hour lasts 54 min; a night hour, 1h 06m. Local time (Asia/Hong_Kong).
Day
- 1♂︎ Mars06:56 – 07:50
- 2☉︎ Sun07:50 – 08:44
- 3♀︎ Venus08:44 – 09:38
- 4☿︎ Mercury09:38 – 10:31
- 5☽︎ Moon10:31 – 11:25
- 6♄︎ Saturn11:25 – 12:19
- 7♃︎ Jupiter12:19 – 13:13
- 8♂︎ Mars13:13 – 14:07
- 9☉︎ Sun14:07 – 15:01
- 10♀︎ Venus15:01 – 15:55
- 11☿︎ Mercury15:55 – 16:48
- 12☽︎ Moon16:48 – 17:42
Night
- 1♄︎ Saturn17:42 – 18:49
- 2♃︎ Jupiter18:49 – 19:55
- 3♂︎ Mars19:55 – 21:01
- 4☉︎ Sun21:01 – 22:07
- 5♀︎ Venus22:07 – 23:13
- 6☿︎ Mercury23:13 – 00:19
- 7☽︎ Moon00:19 – 01:26
- 8♄︎ Saturn01:26 – 02:32
- 9♃︎ Jupiter02:32 – 03:38
- 10♂︎ Mars03:38 – 04:44
- 11☉︎ Sun04:44 – 05:50
- 12♀︎ Venus05:50 – 06:57
Other cities · Hong Kong
Questions
How are the planetary hours calculated in Tuen Mun?
On Tuesday, 16 December 2025, the Sun rises at 06:56 and sets at 17:42: the day lasts 10h 46m, that is twelve day hours of 54 min. The night, until the next sunrise at 06:57, lasts 13h 14m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Mars, from 06:56 to 07:50: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.