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 Thursday, 10 December 2026: day of Jupiter
- Sunrise
- 06:39
- Sunset
- 16:28
- Next sunrise
- 06:39
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Asia/Tokyo).
Day
- 1♃︎ Jupiter06:39 – 07:28
- 2♂︎ Mars07:28 – 08:17
- 3☉︎ Sun08:17 – 09:06
- 4♀︎ Venus09:06 – 09:55
- 5☿︎ Mercury09:55 – 10:44
- 6☽︎ Moon10:44 – 11:33
- 7♄︎ Saturn11:33 – 12:23
- 8♃︎ Jupiter12:23 – 13:12
- 9♂︎ Mars13:12 – 14:01
- 10☉︎ Sun14:01 – 14:50
- 11♀︎ Venus14:50 – 15:39
- 12☿︎ Mercury15:39 – 16:28
Night
- 1☽︎ Moon16:28 – 17:39
- 2♄︎ Saturn17:39 – 18:50
- 3♃︎ Jupiter18:50 – 20:01
- 4♂︎ Mars20:01 – 21:12
- 5☉︎ Sun21:12 – 22:23
- 6♀︎ Venus22:23 – 23:34
- 7☿︎ Mercury23:34 – 00:45
- 8☽︎ Moon00:45 – 01:56
- 9♄︎ Saturn01:56 – 03:07
- 10♃︎ Jupiter03:07 – 04:18
- 11♂︎ Mars04:18 – 05:28
- 12☉︎ Sun05:28 – 06:39
Questions
How are the planetary hours calculated in Yokohama?
On Thursday, 10 December 2026, the Sun rises at 06:39 and sets at 16:28: the day lasts 9h 50m, that is twelve day hours of 49 min. The night, until the next sunrise at 06:39, lasts 14h 11m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Jupiter, from 06:39 to 07:28: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.