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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 Wednesday, 5 August 2026: day of Mercury

Sunrise
04:41
Sunset
18:42
Next sunrise
04:42

A day hour lasts 1h 10m; a night hour, 50 min. Local time (Asia/Tokyo).

Day

  1. 1☿︎ Mercury04:41 – 05:52
  2. 2☽︎ Moon05:52 – 07:02
  3. 3♄︎ Saturn07:02 – 08:12
  4. 4♃︎ Jupiter08:12 – 09:22
  5. 5♂︎ Mars09:22 – 10:32
  6. 6☉︎ Sun10:32 – 11:42
  7. 7♀︎ Venus11:42 – 12:52
  8. 8☿︎ Mercury12:52 – 14:02
  9. 9☽︎ Moon14:02 – 15:12
  10. 10♄︎ Saturn15:12 – 16:22
  11. 11♃︎ Jupiter16:22 – 17:32
  12. 12♂︎ Mars17:32 – 18:42

Night

  1. 1☉︎ Sun18:42 – 19:32
  2. 2♀︎ Venus19:32 – 20:22
  3. 3☿︎ Mercury20:22 – 21:12
  4. 4☽︎ Moon21:12 – 22:02
  5. 5♄︎ Saturn22:02 – 22:52
  6. 6♃︎ Jupiter22:52 – 23:42
  7. 7♂︎ Mars23:42 – 00:32
  8. 8☉︎ Sun00:32 – 01:22
  9. 9♀︎ Venus01:22 – 02:12
  10. 10☿︎ Mercury02:12 – 03:02
  11. 11☽︎ Moon03:02 – 03:52
  12. 12♄︎ Saturn03:52 – 04:42

Questions

How are the planetary hours calculated in Sendai?

On Wednesday, 5 August 2026, the Sun rises at 04:41 and sets at 18:42: the day lasts 14h 01m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 04:42, lasts 10h 00m: twelve night hours of 50 min.

Which planet rules the first hour that day?

Mercury, from 04:41 to 05:52: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.