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Planetary hours · Sendai (Japan)

Planetary hours
in Sendai.

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 Friday, 26 December 2025: day of Venus

Sunrise
06:51
Sunset
16:22
Next sunrise
06:52

A day hour lasts 48 min; a night hour, 1h 12m. Local time (Asia/Tokyo).

Day

  1. 1♀︎ Venus06:51 – 07:39
  2. 2☿︎ Mercury07:39 – 08:26
  3. 3☽︎ Moon08:26 – 09:14
  4. 4♄︎ Saturn09:14 – 10:01
  5. 5♃︎ Jupiter10:01 – 10:49
  6. 6♂︎ Mars10:49 – 11:37
  7. 7☉︎ Sun11:37 – 12:24
  8. 8♀︎ Venus12:24 – 13:12
  9. 9☿︎ Mercury13:12 – 13:59
  10. 10☽︎ Moon13:59 – 14:47
  11. 11♄︎ Saturn14:47 – 15:34
  12. 12♃︎ Jupiter15:34 – 16:22

Night

  1. 1♂︎ Mars16:22 – 17:34
  2. 2☉︎ Sun17:34 – 18:47
  3. 3♀︎ Venus18:47 – 19:59
  4. 4☿︎ Mercury19:59 – 21:12
  5. 5☽︎ Moon21:12 – 22:24
  6. 6♄︎ Saturn22:24 – 23:37
  7. 7♃︎ Jupiter23:37 – 00:49
  8. 8♂︎ Mars00:49 – 02:02
  9. 9☉︎ Sun02:02 – 03:14
  10. 10♀︎ Venus03:14 – 04:27
  11. 11☿︎ Mercury04:27 – 05:39
  12. 12☽︎ Moon05:39 – 06:52

Other cities · Japan

Questions

How are the planetary hours calculated in Sendai?

On Friday, 26 December 2025, the Sun rises at 06:51 and sets at 16:22: the day lasts 9h 31m, that is twelve day hours of 48 min. The night, until the next sunrise at 06:52, lasts 14h 30m: twelve night hours of 1h 12m.

Which planet rules the first hour that day?

Venus, from 06:51 to 07:39: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.