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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 Saturday, 18 October 2025: day of Saturn

Sunrise
05:48
Sunset
16:54
Next sunrise
05:48

A day hour lasts 56 min; a night hour, 1h 05m. Local time (Asia/Tokyo).

Day

  1. 1♄︎ Saturn05:48 – 06:43
  2. 2♃︎ Jupiter06:43 – 07:39
  3. 3♂︎ Mars07:39 – 08:34
  4. 4☉︎ Sun08:34 – 09:30
  5. 5♀︎ Venus09:30 – 10:25
  6. 6☿︎ Mercury10:25 – 11:21
  7. 7☽︎ Moon11:21 – 12:16
  8. 8♄︎ Saturn12:16 – 13:12
  9. 9♃︎ Jupiter13:12 – 14:08
  10. 10♂︎ Mars14:08 – 15:03
  11. 11☉︎ Sun15:03 – 15:59
  12. 12♀︎ Venus15:59 – 16:54

Night

  1. 1☿︎ Mercury16:54 – 17:59
  2. 2☽︎ Moon17:59 – 19:03
  3. 3♄︎ Saturn19:03 – 20:08
  4. 4♃︎ Jupiter20:08 – 21:12
  5. 5♂︎ Mars21:12 – 22:17
  6. 6☉︎ Sun22:17 – 23:21
  7. 7♀︎ Venus23:21 – 00:26
  8. 8☿︎ Mercury00:26 – 01:30
  9. 9☽︎ Moon01:30 – 02:35
  10. 10♄︎ Saturn02:35 – 03:39
  11. 11♃︎ Jupiter03:39 – 04:44
  12. 12♂︎ Mars04:44 – 05:48

Other cities · Japan

Questions

How are the planetary hours calculated in Sendai?

On Saturday, 18 October 2025, the Sun rises at 05:48 and sets at 16:54: the day lasts 11h 07m, that is twelve day hours of 56 min. The night, until the next sunrise at 05:48, lasts 12h 54m: twelve night hours of 1h 05m.

Which planet rules the first hour that day?

Saturn, from 05:48 to 06:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.