Planetary hours
in Neihu.
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, 21 October 2025: day of Mars
- Sunrise
- 05:54
- Sunset
- 17:21
- Next sunrise
- 05:55
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Asia/Taipei).
Day
- 1♂︎ Mars05:54 – 06:52
- 2☉︎ Sun06:52 – 07:49
- 3♀︎ Venus07:49 – 08:46
- 4☿︎ Mercury08:46 – 09:43
- 5☽︎ Moon09:43 – 10:40
- 6♄︎ Saturn10:40 – 11:38
- 7♃︎ Jupiter11:38 – 12:35
- 8♂︎ Mars12:35 – 13:32
- 9☉︎ Sun13:32 – 14:29
- 10♀︎ Venus14:29 – 15:26
- 11☿︎ Mercury15:26 – 16:24
- 12☽︎ Moon16:24 – 17:21
Night
- 1♄︎ Saturn17:21 – 18:24
- 2♃︎ Jupiter18:24 – 19:27
- 3♂︎ Mars19:27 – 20:29
- 4☉︎ Sun20:29 – 21:32
- 5♀︎ Venus21:32 – 22:35
- 6☿︎ Mercury22:35 – 23:38
- 7☽︎ Moon23:38 – 00:41
- 8♄︎ Saturn00:41 – 01:44
- 9♃︎ Jupiter01:44 – 02:46
- 10♂︎ Mars02:46 – 03:49
- 11☉︎ Sun03:49 – 04:52
- 12♀︎ Venus04:52 – 05:55
Other cities · Taiwan
Questions
How are the planetary hours calculated in Neihu?
On Tuesday, 21 October 2025, the Sun rises at 05:54 and sets at 17:21: the day lasts 11h 27m, that is twelve day hours of 57 min. The night, until the next sunrise at 05:55, lasts 12h 34m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Mars, from 05:54 to 06:52: 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.