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 Monday, 25 August 2025: day of the Moon
- Sunrise
- 05:07
- Sunset
- 18:18
- Next sunrise
- 05:08
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Asia/Tokyo).
Day
- 1☽︎ Moon05:07 – 06:13
- 2♄︎ Saturn06:13 – 07:19
- 3♃︎ Jupiter07:19 – 08:25
- 4♂︎ Mars08:25 – 09:31
- 5☉︎ Sun09:31 – 10:37
- 6♀︎ Venus10:37 – 11:43
- 7☿︎ Mercury11:43 – 12:48
- 8☽︎ Moon12:48 – 13:54
- 9♄︎ Saturn13:54 – 15:00
- 10♃︎ Jupiter15:00 – 16:06
- 11♂︎ Mars16:06 – 17:12
- 12☉︎ Sun17:12 – 18:18
Night
- 1♀︎ Venus18:18 – 19:12
- 2☿︎ Mercury19:12 – 20:06
- 3☽︎ Moon20:06 – 21:00
- 4♄︎ Saturn21:00 – 21:55
- 5♃︎ Jupiter21:55 – 22:49
- 6♂︎ Mars22:49 – 23:43
- 7☉︎ Sun23:43 – 00:37
- 8♀︎ Venus00:37 – 01:31
- 9☿︎ Mercury01:31 – 02:25
- 10☽︎ Moon02:25 – 03:20
- 11♄︎ Saturn03:20 – 04:14
- 12♃︎ Jupiter04:14 – 05:08
Questions
How are the planetary hours calculated in Tokyo?
On Monday, 25 August 2025, the Sun rises at 05:07 and sets at 18:18: the day lasts 13h 11m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:08, lasts 10h 50m: twelve night hours of 54 min.
Which planet rules the first hour that day?
The Moon, from 05:07 to 06:13: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.