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 Sunday, 2 August 2026: day of the Sun
- Sunrise
- 05:30
- Sunset
- 18:40
- Next sunrise
- 05:30
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Asia/Taipei).
Day
- 1☉︎ Sun05:30 – 06:36
- 2♀︎ Venus06:36 – 07:41
- 3☿︎ Mercury07:41 – 08:47
- 4☽︎ Moon08:47 – 09:53
- 5♄︎ Saturn09:53 – 10:59
- 6♃︎ Jupiter10:59 – 12:05
- 7♂︎ Mars12:05 – 13:11
- 8☉︎ Sun13:11 – 14:17
- 9♀︎ Venus14:17 – 15:22
- 10☿︎ Mercury15:22 – 16:28
- 11☽︎ Moon16:28 – 17:34
- 12♄︎ Saturn17:34 – 18:40
Night
- 1♃︎ Jupiter18:40 – 19:34
- 2♂︎ Mars19:34 – 20:28
- 3☉︎ Sun20:28 – 21:22
- 4♀︎ Venus21:22 – 22:17
- 5☿︎ Mercury22:17 – 23:11
- 6☽︎ Moon23:11 – 00:05
- 7♄︎ Saturn00:05 – 00:59
- 8♃︎ Jupiter00:59 – 01:53
- 9♂︎ Mars01:53 – 02:48
- 10☉︎ Sun02:48 – 03:42
- 11♀︎ Venus03:42 – 04:36
- 12☿︎ Mercury04:36 – 05:30
Other cities · Taiwan
Questions
How are the planetary hours calculated in Tainan?
On Sunday, 2 August 2026, the Sun rises at 05:30 and sets at 18:40: the day lasts 13h 10m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:30, lasts 10h 50m: twelve night hours of 54 min.
Which planet rules the first hour that day?
The Sun, from 05:30 to 06:36: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.