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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 Sunday, 14 December 2025: day of the Sun

Sunrise
06:45
Sunset
16:16
Next sunrise
06:45

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

Day

  1. 1☉︎ Sun06:45 – 07:32
  2. 2♀︎ Venus07:32 – 08:20
  3. 3☿︎ Mercury08:20 – 09:08
  4. 4☽︎ Moon09:08 – 09:55
  5. 5♄︎ Saturn09:55 – 10:43
  6. 6♃︎ Jupiter10:43 – 11:31
  7. 7♂︎ Mars11:31 – 12:18
  8. 8☉︎ Sun12:18 – 13:06
  9. 9♀︎ Venus13:06 – 13:53
  10. 10☿︎ Mercury13:53 – 14:41
  11. 11☽︎ Moon14:41 – 15:29
  12. 12♄︎ Saturn15:29 – 16:16

Night

  1. 1♃︎ Jupiter16:16 – 17:29
  2. 2♂︎ Mars17:29 – 18:41
  3. 3☉︎ Sun18:41 – 19:54
  4. 4♀︎ Venus19:54 – 21:06
  5. 5☿︎ Mercury21:06 – 22:18
  6. 6☽︎ Moon22:18 – 23:31
  7. 7♄︎ Saturn23:31 – 00:43
  8. 8♃︎ Jupiter00:43 – 01:56
  9. 9♂︎ Mars01:56 – 03:08
  10. 10☉︎ Sun03:08 – 04:21
  11. 11♀︎ Venus04:21 – 05:33
  12. 12☿︎ Mercury05:33 – 06:45

Other cities · Japan

Questions

How are the planetary hours calculated in Sendai?

On Sunday, 14 December 2025, the Sun rises at 06:45 and sets at 16:16: the day lasts 9h 32m, that is twelve day hours of 48 min. The night, until the next sunrise at 06:45, lasts 14h 29m: twelve night hours of 1h 12m.

Which planet rules the first hour that day?

The Sun, from 06:45 to 07:32: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.