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, 19 October 2026: day of the Moon
- Sunrise
- 05:48
- Sunset
- 16:53
- Next sunrise
- 05:49
A day hour lasts 55 min; a night hour, 1h 05m. Local time (Asia/Tokyo).
Day
- 1☽︎ Moon05:48 – 06:44
- 2♄︎ Saturn06:44 – 07:39
- 3♃︎ Jupiter07:39 – 08:35
- 4♂︎ Mars08:35 – 09:30
- 5☉︎ Sun09:30 – 10:25
- 6♀︎ Venus10:25 – 11:21
- 7☿︎ Mercury11:21 – 12:16
- 8☽︎ Moon12:16 – 13:12
- 9♄︎ Saturn13:12 – 14:07
- 10♃︎ Jupiter14:07 – 15:02
- 11♂︎ Mars15:02 – 15:58
- 12☉︎ Sun15:58 – 16:53
Night
- 1♀︎ Venus16:53 – 17:58
- 2☿︎ Mercury17:58 – 19:03
- 3☽︎ Moon19:03 – 20:07
- 4♄︎ Saturn20:07 – 21:12
- 5♃︎ Jupiter21:12 – 22:17
- 6♂︎ Mars22:17 – 23:21
- 7☉︎ Sun23:21 – 00:26
- 8♀︎ Venus00:26 – 01:31
- 9☿︎ Mercury01:31 – 02:35
- 10☽︎ Moon02:35 – 03:40
- 11♄︎ Saturn03:40 – 04:45
- 12♃︎ Jupiter04:45 – 05:49
Questions
How are the planetary hours calculated in Sendai?
On Monday, 19 October 2026, the Sun rises at 05:48 and sets at 16:53: the day lasts 11h 05m, that is twelve day hours of 55 min. The night, until the next sunrise at 05:49, lasts 12h 56m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
The Moon, from 05:48 to 06:44: 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.
On a computer? Scan this code with your phone.
Calendars
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.