Planetary hours
in Nagoya.
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, 5 December 2026: day of Saturn
- Sunrise
- 06:45
- Sunset
- 16:39
- Next sunrise
- 06:46
A day hour lasts 50 min; a night hour, 1h 11m. Local time (Asia/Tokyo).
Day
- 1♄︎ Saturn06:45 – 07:34
- 2♃︎ Jupiter07:34 – 08:24
- 3♂︎ Mars08:24 – 09:14
- 4☉︎ Sun09:14 – 10:03
- 5♀︎ Venus10:03 – 10:53
- 6☿︎ Mercury10:53 – 11:42
- 7☽︎ Moon11:42 – 12:32
- 8♄︎ Saturn12:32 – 13:21
- 9♃︎ Jupiter13:21 – 14:11
- 10♂︎ Mars14:11 – 15:00
- 11☉︎ Sun15:00 – 15:50
- 12♀︎ Venus15:50 – 16:39
Night
- 1☿︎ Mercury16:39 – 17:50
- 2☽︎ Moon17:50 – 19:01
- 3♄︎ Saturn19:01 – 20:11
- 4♃︎ Jupiter20:11 – 21:22
- 5♂︎ Mars21:22 – 22:32
- 6☉︎ Sun22:32 – 23:43
- 7♀︎ Venus23:43 – 00:53
- 8☿︎ Mercury00:53 – 02:04
- 9☽︎ Moon02:04 – 03:14
- 10♄︎ Saturn03:14 – 04:25
- 11♃︎ Jupiter04:25 – 05:35
- 12♂︎ Mars05:35 – 06:46
Questions
How are the planetary hours calculated in Nagoya?
On Saturday, 5 December 2026, the Sun rises at 06:45 and sets at 16:39: the day lasts 9h 55m, that is twelve day hours of 50 min. The night, until the next sunrise at 06:46, lasts 14h 06m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Saturn, from 06:45 to 07:34: 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.