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 Thursday, 26 August 2027: day of Jupiter
- Sunrise
- 05:00
- Sunset
- 18:16
- Next sunrise
- 05:01
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Asia/Tokyo).
Day
- 1♃︎ Jupiter05:00 – 06:06
- 2♂︎ Mars06:06 – 07:12
- 3☉︎ Sun07:12 – 08:19
- 4♀︎ Venus08:19 – 09:25
- 5☿︎ Mercury09:25 – 10:31
- 6☽︎ Moon10:31 – 11:38
- 7♄︎ Saturn11:38 – 12:44
- 8♃︎ Jupiter12:44 – 13:50
- 9♂︎ Mars13:50 – 14:57
- 10☉︎ Sun14:57 – 16:03
- 11♀︎ Venus16:03 – 17:09
- 12☿︎ Mercury17:09 – 18:16
Night
- 1☽︎ Moon18:16 – 19:09
- 2♄︎ Saturn19:09 – 20:03
- 3♃︎ Jupiter20:03 – 20:57
- 4♂︎ Mars20:57 – 21:51
- 5☉︎ Sun21:51 – 22:44
- 6♀︎ Venus22:44 – 23:38
- 7☿︎ Mercury23:38 – 00:32
- 8☽︎ Moon00:32 – 01:26
- 9♄︎ Saturn01:26 – 02:19
- 10♃︎ Jupiter02:19 – 03:13
- 11♂︎ Mars03:13 – 04:07
- 12☉︎ Sun04:07 – 05:01
Questions
How are the planetary hours calculated in Sendai?
On Thursday, 26 August 2027, the Sun rises at 05:00 and sets at 18:16: the day lasts 13h 16m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:01, lasts 10h 45m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Jupiter, from 05:00 to 06:06: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.