Planetary hours
in Hefei.
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, 18 August 2026: day of Mars
- Sunrise
- 05:37
- Sunset
- 18:51
- Next sunrise
- 05:37
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Asia/Shanghai).
Day
- 1♂︎ Mars05:37 – 06:43
- 2☉︎ Sun06:43 – 07:49
- 3♀︎ Venus07:49 – 08:55
- 4☿︎ Mercury08:55 – 10:02
- 5☽︎ Moon10:02 – 11:08
- 6♄︎ Saturn11:08 – 12:14
- 7♃︎ Jupiter12:14 – 13:20
- 8♂︎ Mars13:20 – 14:26
- 9☉︎ Sun14:26 – 15:33
- 10♀︎ Venus15:33 – 16:39
- 11☿︎ Mercury16:39 – 17:45
- 12☽︎ Moon17:45 – 18:51
Night
- 1♄︎ Saturn18:51 – 19:45
- 2♃︎ Jupiter19:45 – 20:39
- 3♂︎ Mars20:39 – 21:33
- 4☉︎ Sun21:33 – 22:27
- 5♀︎ Venus22:27 – 23:21
- 6☿︎ Mercury23:21 – 00:14
- 7☽︎ Moon00:14 – 01:08
- 8♄︎ Saturn01:08 – 02:02
- 9♃︎ Jupiter02:02 – 02:56
- 10♂︎ Mars02:56 – 03:50
- 11☉︎ Sun03:50 – 04:44
- 12♀︎ Venus04:44 – 05:37
Other cities · China
Questions
How are the planetary hours calculated in Hefei?
On Tuesday, 18 August 2026, the Sun rises at 05:37 and sets at 18:51: the day lasts 13h 15m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:37, lasts 10h 46m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mars, from 05:37 to 06:43: 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.