Planetary hours
in Yokohama.
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, 21 December 2026: day of the Moon
- Sunrise
- 06:46
- Sunset
- 16:32
- Next sunrise
- 06:46
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Asia/Tokyo).
Day
- 1☽︎ Moon06:46 – 07:35
- 2♄︎ Saturn07:35 – 08:23
- 3♃︎ Jupiter08:23 – 09:12
- 4♂︎ Mars09:12 – 10:01
- 5☉︎ Sun10:01 – 10:50
- 6♀︎ Venus10:50 – 11:39
- 7☿︎ Mercury11:39 – 12:28
- 8☽︎ Moon12:28 – 13:16
- 9♄︎ Saturn13:16 – 14:05
- 10♃︎ Jupiter14:05 – 14:54
- 11♂︎ Mars14:54 – 15:43
- 12☉︎ Sun15:43 – 16:32
Night
- 1♀︎ Venus16:32 – 17:43
- 2☿︎ Mercury17:43 – 18:54
- 3☽︎ Moon18:54 – 20:05
- 4♄︎ Saturn20:05 – 21:17
- 5♃︎ Jupiter21:17 – 22:28
- 6♂︎ Mars22:28 – 23:39
- 7☉︎ Sun23:39 – 00:50
- 8♀︎ Venus00:50 – 02:01
- 9☿︎ Mercury02:01 – 03:13
- 10☽︎ Moon03:13 – 04:24
- 11♄︎ Saturn04:24 – 05:35
- 12♃︎ Jupiter05:35 – 06:46
Questions
How are the planetary hours calculated in Yokohama?
On Monday, 21 December 2026, the Sun rises at 06:46 and sets at 16:32: the day lasts 9h 46m, that is twelve day hours of 49 min. The night, until the next sunrise at 06:46, lasts 14h 15m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
The Moon, from 06:46 to 07:35: 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.