AstroXP ▶︎All our videos by signVideos
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, 21 October 2026: day of Mercury

Sunrise
05:50
Sunset
16:51
Next sunrise
05:51

A day hour lasts 55 min; a night hour, 1h 05m. Local time (Asia/Tokyo).

Day

  1. 1☿︎ Mercury05:50 – 06:45
  2. 2☽︎ Moon06:45 – 07:40
  3. 3♄︎ Saturn07:40 – 08:35
  4. 4♃︎ Jupiter08:35 – 09:30
  5. 5♂︎ Mars09:30 – 10:25
  6. 6☉︎ Sun10:25 – 11:20
  7. 7♀︎ Venus11:20 – 12:15
  8. 8☿︎ Mercury12:15 – 13:10
  9. 9☽︎ Moon13:10 – 14:06
  10. 10♄︎ Saturn14:06 – 15:01
  11. 11♃︎ Jupiter15:01 – 15:56
  12. 12♂︎ Mars15:56 – 16:51

Night

  1. 1☉︎ Sun16:51 – 17:56
  2. 2♀︎ Venus17:56 – 19:01
  3. 3☿︎ Mercury19:01 – 20:06
  4. 4☽︎ Moon20:06 – 21:11
  5. 5♄︎ Saturn21:11 – 22:16
  6. 6♃︎ Jupiter22:16 – 23:21
  7. 7♂︎ Mars23:21 – 00:26
  8. 8☉︎ Sun00:26 – 01:31
  9. 9♀︎ Venus01:31 – 02:36
  10. 10☿︎ Mercury02:36 – 03:41
  11. 11☽︎ Moon03:41 – 04:46
  12. 12♄︎ Saturn04:46 – 05:51

Questions

How are the planetary hours calculated in Sendai?

On Wednesday, 21 October 2026, the Sun rises at 05:50 and sets at 16:51: the day lasts 11h 00m, that is twelve day hours of 55 min. The night, until the next sunrise at 05:51, lasts 13h 01m: twelve night hours of 1h 05m.

Which planet rules the first hour that day?

Mercury, from 05:50 to 06:45: 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

On a computer? Scan this code with your phone.

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.