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 Saturday, 15 August 2026: day of Saturn
- Sunrise
- 05:35
- Sunset
- 18:31
- Next sunrise
- 05:35
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Asia/Taipei).
Day
- 1♄︎ Saturn05:35 – 06:40
- 2♃︎ Jupiter06:40 – 07:44
- 3♂︎ Mars07:44 – 08:49
- 4☉︎ Sun08:49 – 09:54
- 5♀︎ Venus09:54 – 10:58
- 6☿︎ Mercury10:58 – 12:03
- 7☽︎ Moon12:03 – 13:08
- 8♄︎ Saturn13:08 – 14:12
- 9♃︎ Jupiter14:12 – 15:17
- 10♂︎ Mars15:17 – 16:22
- 11☉︎ Sun16:22 – 17:26
- 12♀︎ Venus17:26 – 18:31
Night
- 1☿︎ Mercury18:31 – 19:27
- 2☽︎ Moon19:27 – 20:22
- 3♄︎ Saturn20:22 – 21:17
- 4♃︎ Jupiter21:17 – 22:13
- 5♂︎ Mars22:13 – 23:08
- 6☉︎ Sun23:08 – 00:03
- 7♀︎ Venus00:03 – 00:59
- 8☿︎ Mercury00:59 – 01:54
- 9☽︎ Moon01:54 – 02:49
- 10♄︎ Saturn02:49 – 03:45
- 11♃︎ Jupiter03:45 – 04:40
- 12♂︎ Mars04:40 – 05:35
Other cities · Taiwan
Questions
How are the planetary hours calculated in Tainan?
On Saturday, 15 August 2026, the Sun rises at 05:35 and sets at 18:31: the day lasts 12h 56m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:35, lasts 11h 04m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Saturn, from 05:35 to 06:40: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.