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 Sunday, 26 April 2026: day of the Sun
- Sunrise
- 05:07
- Sunset
- 18:33
- Next sunrise
- 05:06
A day hour lasts 1h 07m; a night hour, 53 min. Local time (Asia/Tokyo).
Day
- 1☉︎ Sun05:07 – 06:14
- 2♀︎ Venus06:14 – 07:21
- 3☿︎ Mercury07:21 – 08:28
- 4☽︎ Moon08:28 – 09:36
- 5♄︎ Saturn09:36 – 10:43
- 6♃︎ Jupiter10:43 – 11:50
- 7♂︎ Mars11:50 – 12:57
- 8☉︎ Sun12:57 – 14:04
- 9♀︎ Venus14:04 – 15:12
- 10☿︎ Mercury15:12 – 16:19
- 11☽︎ Moon16:19 – 17:26
- 12♄︎ Saturn17:26 – 18:33
Night
- 1♃︎ Jupiter18:33 – 19:26
- 2♂︎ Mars19:26 – 20:19
- 3☉︎ Sun20:19 – 21:11
- 4♀︎ Venus21:11 – 22:04
- 5☿︎ Mercury22:04 – 22:57
- 6☽︎ Moon22:57 – 23:49
- 7♄︎ Saturn23:49 – 00:42
- 8♃︎ Jupiter00:42 – 01:35
- 9♂︎ Mars01:35 – 02:28
- 10☉︎ Sun02:28 – 03:20
- 11♀︎ Venus03:20 – 04:13
- 12☿︎ Mercury04:13 – 05:06
Questions
How are the planetary hours calculated in Nagoya?
On Sunday, 26 April 2026, the Sun rises at 05:07 and sets at 18:33: the day lasts 13h 26m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 05:06, lasts 10h 33m: twelve night hours of 53 min.
Which planet rules the first hour that day?
The Sun, from 05:07 to 06:14: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.