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 Thursday, 29 October 2026: day of Jupiter
- Sunrise
- 06:10
- Sunset
- 17:01
- Next sunrise
- 06:11
A day hour lasts 54 min; a night hour, 1h 06m. Local time (Asia/Tokyo).
Day
- 1♃︎ Jupiter06:10 – 07:04
- 2♂︎ Mars07:04 – 07:58
- 3☉︎ Sun07:58 – 08:53
- 4♀︎ Venus08:53 – 09:47
- 5☿︎ Mercury09:47 – 10:41
- 6☽︎ Moon10:41 – 11:35
- 7♄︎ Saturn11:35 – 12:30
- 8♃︎ Jupiter12:30 – 13:24
- 9♂︎ Mars13:24 – 14:18
- 10☉︎ Sun14:18 – 15:12
- 11♀︎ Venus15:12 – 16:07
- 12☿︎ Mercury16:07 – 17:01
Night
- 1☽︎ Moon17:01 – 18:07
- 2♄︎ Saturn18:07 – 19:13
- 3♃︎ Jupiter19:13 – 20:18
- 4♂︎ Mars20:18 – 21:24
- 5☉︎ Sun21:24 – 22:30
- 6♀︎ Venus22:30 – 23:36
- 7☿︎ Mercury23:36 – 00:42
- 8☽︎ Moon00:42 – 01:47
- 9♄︎ Saturn01:47 – 02:53
- 10♃︎ Jupiter02:53 – 03:59
- 11♂︎ Mars03:59 – 05:05
- 12☉︎ Sun05:05 – 06:11
Questions
How are the planetary hours calculated in Nagoya?
On Thursday, 29 October 2026, the Sun rises at 06:10 and sets at 17:01: the day lasts 10h 51m, that is twelve day hours of 54 min. The night, until the next sunrise at 06:11, lasts 13h 10m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Jupiter, from 06:10 to 07:04: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.