Planetary hours
in Tainan.
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 Monday, 31 August 2026: day of the Moon
- Sunrise
- 05:41
- Sunset
- 18:17
- Next sunrise
- 05:41
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Asia/Taipei).
Day
- 1☽︎ Moon05:41 – 06:44
- 2♄︎ Saturn06:44 – 07:47
- 3♃︎ Jupiter07:47 – 08:50
- 4♂︎ Mars08:50 – 09:53
- 5☉︎ Sun09:53 – 10:56
- 6♀︎ Venus10:56 – 11:59
- 7☿︎ Mercury11:59 – 13:02
- 8☽︎ Moon13:02 – 14:05
- 9♄︎ Saturn14:05 – 15:08
- 10♃︎ Jupiter15:08 – 16:11
- 11♂︎ Mars16:11 – 17:14
- 12☉︎ Sun17:14 – 18:17
Night
- 1♀︎ Venus18:17 – 19:14
- 2☿︎ Mercury19:14 – 20:11
- 3☽︎ Moon20:11 – 21:08
- 4♄︎ Saturn21:08 – 22:05
- 5♃︎ Jupiter22:05 – 23:02
- 6♂︎ Mars23:02 – 23:59
- 7☉︎ Sun23:59 – 00:56
- 8♀︎ Venus00:56 – 01:53
- 9☿︎ Mercury01:53 – 02:50
- 10☽︎ Moon02:50 – 03:47
- 11♄︎ Saturn03:47 – 04:44
- 12♃︎ Jupiter04:44 – 05:41
Other cities · Taiwan
Questions
How are the planetary hours calculated in Tainan?
On Monday, 31 August 2026, the Sun rises at 05:41 and sets at 18:17: the day lasts 12h 37m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:41, lasts 11h 24m: twelve night hours of 57 min.
Which planet rules the first hour that day?
The Moon, from 05:41 to 06:44: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.