Planetary hours
in Tokyo.
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, 22 April 2028: day of Saturn
- Sunrise
- 04:59
- Sunset
- 18:20
- Next sunrise
- 04:58
A day hour lasts 1h 07m; a night hour, 53 min. Local time (Asia/Tokyo).
Day
- 1♄︎ Saturn04:59 – 06:06
- 2♃︎ Jupiter06:06 – 07:13
- 3♂︎ Mars07:13 – 08:19
- 4☉︎ Sun08:19 – 09:26
- 5♀︎ Venus09:26 – 10:33
- 6☿︎ Mercury10:33 – 11:40
- 7☽︎ Moon11:40 – 12:46
- 8♄︎ Saturn12:46 – 13:53
- 9♃︎ Jupiter13:53 – 15:00
- 10♂︎ Mars15:00 – 16:06
- 11☉︎ Sun16:06 – 17:13
- 12♀︎ Venus17:13 – 18:20
Night
- 1☿︎ Mercury18:20 – 19:13
- 2☽︎ Moon19:13 – 20:06
- 3♄︎ Saturn20:06 – 20:59
- 4♃︎ Jupiter20:59 – 21:53
- 5♂︎ Mars21:53 – 22:46
- 6☉︎ Sun22:46 – 23:39
- 7♀︎ Venus23:39 – 00:32
- 8☿︎ Mercury00:32 – 01:25
- 9☽︎ Moon01:25 – 02:18
- 10♄︎ Saturn02:18 – 03:12
- 11♃︎ Jupiter03:12 – 04:05
- 12♂︎ Mars04:05 – 04:58
Questions
How are the planetary hours calculated in Tokyo?
On Saturday, 22 April 2028, the Sun rises at 04:59 and sets at 18:20: the day lasts 13h 21m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 04:58, lasts 10h 38m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Saturn, from 04:59 to 06:06: 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.