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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 Monday, 21 December 2026: day of the Moon

Sunrise
06:49
Sunset
16:19
Next sunrise
06:49

A day hour lasts 48 min; a night hour, 1h 13m. Local time (Asia/Tokyo).

Day

  1. 1☽︎ Moon06:49 – 07:36
  2. 2♄︎ Saturn07:36 – 08:24
  3. 3♃︎ Jupiter08:24 – 09:11
  4. 4♂︎ Mars09:11 – 09:59
  5. 5☉︎ Sun09:59 – 10:46
  6. 6♀︎ Venus10:46 – 11:34
  7. 7☿︎ Mercury11:34 – 12:21
  8. 8☽︎ Moon12:21 – 13:09
  9. 9♄︎ Saturn13:09 – 13:56
  10. 10♃︎ Jupiter13:56 – 14:44
  11. 11♂︎ Mars14:44 – 15:31
  12. 12☉︎ Sun15:31 – 16:19

Night

  1. 1♀︎ Venus16:19 – 17:31
  2. 2☿︎ Mercury17:31 – 18:44
  3. 3☽︎ Moon18:44 – 19:57
  4. 4♄︎ Saturn19:57 – 21:09
  5. 5♃︎ Jupiter21:09 – 22:22
  6. 6♂︎ Mars22:22 – 23:34
  7. 7☉︎ Sun23:34 – 00:47
  8. 8♀︎ Venus00:47 – 01:59
  9. 9☿︎ Mercury01:59 – 03:12
  10. 10☽︎ Moon03:12 – 04:24
  11. 11♄︎ Saturn04:24 – 05:37
  12. 12♃︎ Jupiter05:37 – 06:49

Questions

How are the planetary hours calculated in Sendai?

On Monday, 21 December 2026, the Sun rises at 06:49 and sets at 16:19: the day lasts 9h 30m, that is twelve day hours of 48 min. The night, until the next sunrise at 06:49, lasts 14h 30m: twelve night hours of 1h 13m.

Which planet rules the first hour that day?

The Moon, from 06:49 to 07:36: 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.

My sky on my chart

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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.