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 Wednesday, 22 July 2026: day of Mercury
- Sunrise
- 04:53
- Sunset
- 19:03
- Next sunrise
- 04:54
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Asia/Tokyo).
Day
- 1☿︎ Mercury04:53 – 06:04
- 2☽︎ Moon06:04 – 07:15
- 3♄︎ Saturn07:15 – 08:26
- 4♃︎ Jupiter08:26 – 09:37
- 5♂︎ Mars09:37 – 10:47
- 6☉︎ Sun10:47 – 11:58
- 7♀︎ Venus11:58 – 13:09
- 8☿︎ Mercury13:09 – 14:20
- 9☽︎ Moon14:20 – 15:31
- 10♄︎ Saturn15:31 – 16:41
- 11♃︎ Jupiter16:41 – 17:52
- 12♂︎ Mars17:52 – 19:03
Night
- 1☉︎ Sun19:03 – 19:52
- 2♀︎ Venus19:52 – 20:42
- 3☿︎ Mercury20:42 – 21:31
- 4☽︎ Moon21:31 – 22:20
- 5♄︎ Saturn22:20 – 23:09
- 6♃︎ Jupiter23:09 – 23:58
- 7♂︎ Mars23:58 – 00:48
- 8☉︎ Sun00:48 – 01:37
- 9♀︎ Venus01:37 – 02:26
- 10☿︎ Mercury02:26 – 03:15
- 11☽︎ Moon03:15 – 04:05
- 12♄︎ Saturn04:05 – 04:54
Questions
How are the planetary hours calculated in Nagoya?
On Wednesday, 22 July 2026, the Sun rises at 04:53 and sets at 19:03: the day lasts 14h 10m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 04:54, lasts 9h 51m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mercury, from 04:53 to 06:04: 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.