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, 6 February 2027: day of Saturn
- Sunrise
- 06:37
- Sunset
- 17:03
- Next sunrise
- 06:36
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Asia/Tokyo).
Day
- 1♄︎ Saturn06:37 – 07:29
- 2♃︎ Jupiter07:29 – 08:21
- 3♂︎ Mars08:21 – 09:14
- 4☉︎ Sun09:14 – 10:06
- 5♀︎ Venus10:06 – 10:58
- 6☿︎ Mercury10:58 – 11:50
- 7☽︎ Moon11:50 – 12:42
- 8♄︎ Saturn12:42 – 13:35
- 9♃︎ Jupiter13:35 – 14:27
- 10♂︎ Mars14:27 – 15:19
- 11☉︎ Sun15:19 – 16:11
- 12♀︎ Venus16:11 – 17:03
Night
- 1☿︎ Mercury17:03 – 18:11
- 2☽︎ Moon18:11 – 19:19
- 3♄︎ Saturn19:19 – 20:27
- 4♃︎ Jupiter20:27 – 21:34
- 5♂︎ Mars21:34 – 22:42
- 6☉︎ Sun22:42 – 23:50
- 7♀︎ Venus23:50 – 00:57
- 8☿︎ Mercury00:57 – 02:05
- 9☽︎ Moon02:05 – 03:13
- 10♄︎ Saturn03:13 – 04:21
- 11♃︎ Jupiter04:21 – 05:28
- 12♂︎ Mars05:28 – 06:36
Questions
How are the planetary hours calculated in Sendai?
On Saturday, 6 February 2027, the Sun rises at 06:37 and sets at 17:03: the day lasts 10h 26m, that is twelve day hours of 52 min. The night, until the next sunrise at 06:36, lasts 13h 33m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Saturn, from 06:37 to 07:29: 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.