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 Wednesday, 29 July 2026: day of Mercury
- Sunrise
- 05:28
- Sunset
- 18:42
- Next sunrise
- 05:28
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Asia/Taipei).
Day
- 1☿︎ Mercury05:28 – 06:34
- 2☽︎ Moon06:34 – 07:40
- 3♄︎ Saturn07:40 – 08:47
- 4♃︎ Jupiter08:47 – 09:53
- 5♂︎ Mars09:53 – 10:59
- 6☉︎ Sun10:59 – 12:05
- 7♀︎ Venus12:05 – 13:11
- 8☿︎ Mercury13:11 – 14:17
- 9☽︎ Moon14:17 – 15:24
- 10♄︎ Saturn15:24 – 16:30
- 11♃︎ Jupiter16:30 – 17:36
- 12♂︎ Mars17:36 – 18:42
Night
- 1☉︎ Sun18:42 – 19:36
- 2♀︎ Venus19:36 – 20:30
- 3☿︎ Mercury20:30 – 21:24
- 4☽︎ Moon21:24 – 22:18
- 5♄︎ Saturn22:18 – 23:11
- 6♃︎ Jupiter23:11 – 00:05
- 7♂︎ Mars00:05 – 00:59
- 8☉︎ Sun00:59 – 01:53
- 9♀︎ Venus01:53 – 02:47
- 10☿︎ Mercury02:47 – 03:41
- 11☽︎ Moon03:41 – 04:35
- 12♄︎ Saturn04:35 – 05:28
Other cities · Taiwan
Questions
How are the planetary hours calculated in Tainan?
On Wednesday, 29 July 2026, the Sun rises at 05:28 and sets at 18:42: the day lasts 13h 14m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:28, lasts 10h 46m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mercury, from 05:28 to 06:34: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.