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Planetary hours · Yokohama (Japan)

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, 21 August 2025: day of Jupiter

Sunrise
05:05
Sunset
18:23
Next sunrise
05:05

A day hour lasts 1h 07m; a night hour, 54 min. Local time (Asia/Tokyo).

Day

  1. 1♃︎ Jupiter05:05 – 06:11
  2. 2♂︎ Mars06:11 – 07:18
  3. 3☉︎ Sun07:18 – 08:24
  4. 4♀︎ Venus08:24 – 09:31
  5. 5☿︎ Mercury09:31 – 10:37
  6. 6☽︎ Moon10:37 – 11:44
  7. 7♄︎ Saturn11:44 – 12:50
  8. 8♃︎ Jupiter12:50 – 13:57
  9. 9♂︎ Mars13:57 – 15:03
  10. 10☉︎ Sun15:03 – 16:10
  11. 11♀︎ Venus16:10 – 17:16
  12. 12☿︎ Mercury17:16 – 18:23

Night

  1. 1☽︎ Moon18:23 – 19:16
  2. 2♄︎ Saturn19:16 – 20:10
  3. 3♃︎ Jupiter20:10 – 21:04
  4. 4♂︎ Mars21:04 – 21:57
  5. 5☉︎ Sun21:57 – 22:51
  6. 6♀︎ Venus22:51 – 23:44
  7. 7☿︎ Mercury23:44 – 00:38
  8. 8☽︎ Moon00:38 – 01:31
  9. 9♄︎ Saturn01:31 – 02:25
  10. 10♃︎ Jupiter02:25 – 03:18
  11. 11♂︎ Mars03:18 – 04:12
  12. 12☉︎ Sun04:12 – 05:05

Other cities · Japan

Questions

How are the planetary hours calculated in Yokohama?

On Thursday, 21 August 2025, the Sun rises at 05:05 and sets at 18:23: the day lasts 13h 18m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 05:05, lasts 10h 42m: twelve night hours of 54 min.

Which planet rules the first hour that day?

Jupiter, from 05:05 to 06:11: 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.

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Calendars

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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.