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 Tuesday, 21 July 2026: day of Mars
- Sunrise
- 04:40
- Sunset
- 18:54
- Next sunrise
- 04:41
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars04:40 – 05:51
- 2☉︎ Sun05:51 – 07:02
- 3♀︎ Venus07:02 – 08:14
- 4☿︎ Mercury08:14 – 09:25
- 5☽︎ Moon09:25 – 10:36
- 6♄︎ Saturn10:36 – 11:47
- 7♃︎ Jupiter11:47 – 12:58
- 8♂︎ Mars12:58 – 14:09
- 9☉︎ Sun14:09 – 15:20
- 10♀︎ Venus15:20 – 16:32
- 11☿︎ Mercury16:32 – 17:43
- 12☽︎ Moon17:43 – 18:54
Night
- 1♄︎ Saturn18:54 – 19:43
- 2♃︎ Jupiter19:43 – 20:32
- 3♂︎ Mars20:32 – 21:21
- 4☉︎ Sun21:21 – 22:09
- 5♀︎ Venus22:09 – 22:58
- 6☿︎ Mercury22:58 – 23:47
- 7☽︎ Moon23:47 – 00:36
- 8♄︎ Saturn00:36 – 01:25
- 9♃︎ Jupiter01:25 – 02:14
- 10♂︎ Mars02:14 – 03:03
- 11☉︎ Sun03:03 – 03:52
- 12♀︎ Venus03:52 – 04:41
Questions
How are the planetary hours calculated in Tokyo?
On Tuesday, 21 July 2026, the Sun rises at 04:40 and sets at 18:54: the day lasts 14h 14m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 04:41, lasts 9h 47m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mars, from 04:40 to 05:51: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.