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 Saturday, 24 April 2027: day of Saturn
- Sunrise
- 04:49
- Sunset
- 18:20
- Next sunrise
- 04:48
A day hour lasts 1h 08m; a night hour, 52 min. Local time (Asia/Tokyo).
Day
- 1♄︎ Saturn04:49 – 05:57
- 2♃︎ Jupiter05:57 – 07:04
- 3♂︎ Mars07:04 – 08:12
- 4☉︎ Sun08:12 – 09:19
- 5♀︎ Venus09:19 – 10:27
- 6☿︎ Mercury10:27 – 11:35
- 7☽︎ Moon11:35 – 12:42
- 8♄︎ Saturn12:42 – 13:50
- 9♃︎ Jupiter13:50 – 14:57
- 10♂︎ Mars14:57 – 16:05
- 11☉︎ Sun16:05 – 17:13
- 12♀︎ Venus17:13 – 18:20
Night
- 1☿︎ Mercury18:20 – 19:12
- 2☽︎ Moon19:12 – 20:05
- 3♄︎ Saturn20:05 – 20:57
- 4♃︎ Jupiter20:57 – 21:49
- 5♂︎ Mars21:49 – 22:42
- 6☉︎ Sun22:42 – 23:34
- 7♀︎ Venus23:34 – 00:26
- 8☿︎ Mercury00:26 – 01:19
- 9☽︎ Moon01:19 – 02:11
- 10♄︎ Saturn02:11 – 03:03
- 11♃︎ Jupiter03:03 – 03:55
- 12♂︎ Mars03:55 – 04:48
Questions
How are the planetary hours calculated in Sendai?
On Saturday, 24 April 2027, the Sun rises at 04:49 and sets at 18:20: the day lasts 13h 31m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 04:48, lasts 10h 28m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Saturn, from 04:49 to 05:57: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.