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 Tuesday, 22 December 2026: day of Mars
- Sunrise
- 06:46
- Sunset
- 16:32
- Next sunrise
- 06:47
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars06:46 – 07:35
- 2☉︎ Sun07:35 – 08:24
- 3♀︎ Venus08:24 – 09:13
- 4☿︎ Mercury09:13 – 10:02
- 5☽︎ Moon10:02 – 10:50
- 6♄︎ Saturn10:50 – 11:39
- 7♃︎ Jupiter11:39 – 12:28
- 8♂︎ Mars12:28 – 13:17
- 9☉︎ Sun13:17 – 14:06
- 10♀︎ Venus14:06 – 14:55
- 11☿︎ Mercury14:55 – 15:43
- 12☽︎ Moon15:43 – 16:32
Night
- 1♄︎ Saturn16:32 – 17:43
- 2♃︎ Jupiter17:43 – 18:55
- 3♂︎ Mars18:55 – 20:06
- 4☉︎ Sun20:06 – 21:17
- 5♀︎ Venus21:17 – 22:28
- 6☿︎ Mercury22:28 – 23:40
- 7☽︎ Moon23:40 – 00:51
- 8♄︎ Saturn00:51 – 02:02
- 9♃︎ Jupiter02:02 – 03:13
- 10♂︎ Mars03:13 – 04:24
- 11☉︎ Sun04:24 – 05:36
- 12♀︎ Venus05:36 – 06:47
Questions
How are the planetary hours calculated in Yokohama?
On Tuesday, 22 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 06:47, lasts 14h 15m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Mars, 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: 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.