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, 9 April 2027: day of Venus
- Sunrise
- 05:10
- Sunset
- 18:06
- Next sunrise
- 05:09
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Asia/Tokyo).
Day
- 1♀︎ Venus05:10 – 06:15
- 2☿︎ Mercury06:15 – 07:19
- 3☽︎ Moon07:19 – 08:24
- 4♄︎ Saturn08:24 – 09:29
- 5♃︎ Jupiter09:29 – 10:33
- 6♂︎ Mars10:33 – 11:38
- 7☉︎ Sun11:38 – 12:43
- 8♀︎ Venus12:43 – 13:47
- 9☿︎ Mercury13:47 – 14:52
- 10☽︎ Moon14:52 – 15:57
- 11♄︎ Saturn15:57 – 17:01
- 12♃︎ Jupiter17:01 – 18:06
Night
- 1♂︎ Mars18:06 – 19:01
- 2☉︎ Sun19:01 – 19:56
- 3♀︎ Venus19:56 – 20:52
- 4☿︎ Mercury20:52 – 21:47
- 5☽︎ Moon21:47 – 22:42
- 6♄︎ Saturn22:42 – 23:37
- 7♃︎ Jupiter23:37 – 00:33
- 8♂︎ Mars00:33 – 01:28
- 9☉︎ Sun01:28 – 02:23
- 10♀︎ Venus02:23 – 03:18
- 11☿︎ Mercury03:18 – 04:13
- 12☽︎ Moon04:13 – 05:09
Questions
How are the planetary hours calculated in Sendai?
On Friday, 9 April 2027, the Sun rises at 05:10 and sets at 18:06: the day lasts 12h 56m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:09, lasts 11h 03m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Venus, from 05:10 to 06:15: 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.