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 Friday, 24 December 2027: day of Venus
- Sunrise
- 06:50
- Sunset
- 16:20
- Next sunrise
- 06:51
A day hour lasts 48 min; a night hour, 1h 13m. Local time (Asia/Tokyo).
Day
- 1♀︎ Venus06:50 – 07:38
- 2☿︎ Mercury07:38 – 08:25
- 3☽︎ Moon08:25 – 09:13
- 4♄︎ Saturn09:13 – 10:00
- 5♃︎ Jupiter10:00 – 10:48
- 6♂︎ Mars10:48 – 11:35
- 7☉︎ Sun11:35 – 12:23
- 8♀︎ Venus12:23 – 13:10
- 9☿︎ Mercury13:10 – 13:58
- 10☽︎ Moon13:58 – 14:45
- 11♄︎ Saturn14:45 – 15:33
- 12♃︎ Jupiter15:33 – 16:20
Night
- 1♂︎ Mars16:20 – 17:33
- 2☉︎ Sun17:33 – 18:45
- 3♀︎ Venus18:45 – 19:58
- 4☿︎ Mercury19:58 – 21:10
- 5☽︎ Moon21:10 – 22:23
- 6♄︎ Saturn22:23 – 23:35
- 7♃︎ Jupiter23:35 – 00:48
- 8♂︎ Mars00:48 – 02:01
- 9☉︎ Sun02:01 – 03:13
- 10♀︎ Venus03:13 – 04:26
- 11☿︎ Mercury04:26 – 05:38
- 12☽︎ Moon05:38 – 06:51
Questions
How are the planetary hours calculated in Sendai?
On Friday, 24 December 2027, the Sun rises at 06:50 and sets at 16:20: the day lasts 9h 30m, that is twelve day hours of 48 min. The night, until the next sunrise at 06:51, lasts 14h 30m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Venus, from 06:50 to 07:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.