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 Sunday, 19 April 2026: day of the Sun
- Sunrise
- 05:04
- Sunset
- 18:17
- Next sunrise
- 05:02
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Asia/Tokyo).
Day
- 1☉︎ Sun05:04 – 06:10
- 2♀︎ Venus06:10 – 07:16
- 3☿︎ Mercury07:16 – 08:22
- 4☽︎ Moon08:22 – 09:28
- 5♄︎ Saturn09:28 – 10:34
- 6♃︎ Jupiter10:34 – 11:40
- 7♂︎ Mars11:40 – 12:46
- 8☉︎ Sun12:46 – 13:52
- 9♀︎ Venus13:52 – 14:59
- 10☿︎ Mercury14:59 – 16:05
- 11☽︎ Moon16:05 – 17:11
- 12♄︎ Saturn17:11 – 18:17
Night
- 1♃︎ Jupiter18:17 – 19:11
- 2♂︎ Mars19:11 – 20:05
- 3☉︎ Sun20:05 – 20:58
- 4♀︎ Venus20:58 – 21:52
- 5☿︎ Mercury21:52 – 22:46
- 6☽︎ Moon22:46 – 23:40
- 7♄︎ Saturn23:40 – 00:33
- 8♃︎ Jupiter00:33 – 01:27
- 9♂︎ Mars01:27 – 02:21
- 10☉︎ Sun02:21 – 03:15
- 11♀︎ Venus03:15 – 04:08
- 12☿︎ Mercury04:08 – 05:02
Questions
How are the planetary hours calculated in Tokyo?
On Sunday, 19 April 2026, the Sun rises at 05:04 and sets at 18:17: the day lasts 13h 13m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:02, lasts 10h 45m: twelve night hours of 54 min.
Which planet rules the first hour that day?
The Sun, from 05:04 to 06:10: 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.