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 Friday, 1 January 2027: day of Venus
- Sunrise
- 07:00
- Sunset
- 16:50
- Next sunrise
- 07:00
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Asia/Tokyo).
Day
- 1♀︎ Venus07:00 – 07:49
- 2☿︎ Mercury07:49 – 08:39
- 3☽︎ Moon08:39 – 09:28
- 4♄︎ Saturn09:28 – 10:17
- 5♃︎ Jupiter10:17 – 11:06
- 6♂︎ Mars11:06 – 11:55
- 7☉︎ Sun11:55 – 12:44
- 8♀︎ Venus12:44 – 13:34
- 9☿︎ Mercury13:34 – 14:23
- 10☽︎ Moon14:23 – 15:12
- 11♄︎ Saturn15:12 – 16:01
- 12♃︎ Jupiter16:01 – 16:50
Night
- 1♂︎ Mars16:50 – 18:01
- 2☉︎ Sun18:01 – 19:12
- 3♀︎ Venus19:12 – 20:23
- 4☿︎ Mercury20:23 – 21:34
- 5☽︎ Moon21:34 – 22:44
- 6♄︎ Saturn22:44 – 23:55
- 7♃︎ Jupiter23:55 – 01:06
- 8♂︎ Mars01:06 – 02:17
- 9☉︎ Sun02:17 – 03:28
- 10♀︎ Venus03:28 – 04:39
- 11☿︎ Mercury04:39 – 05:50
- 12☽︎ Moon05:50 – 07:00
Questions
How are the planetary hours calculated in Nagoya?
On Friday, 1 January 2027, the Sun rises at 07:00 and sets at 16:50: the day lasts 9h 50m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:00, lasts 14h 10m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Venus, from 07:00 to 07:49: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.