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 Sunday, 8 August 2027: day of the Sun
- Sunrise
- 04:44
- Sunset
- 18:39
- Next sunrise
- 04:45
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Asia/Tokyo).
Day
- 1☉︎ Sun04:44 – 05:53
- 2♀︎ Venus05:53 – 07:03
- 3☿︎ Mercury07:03 – 08:13
- 4☽︎ Moon08:13 – 09:22
- 5♄︎ Saturn09:22 – 10:32
- 6♃︎ Jupiter10:32 – 11:41
- 7♂︎ Mars11:41 – 12:51
- 8☉︎ Sun12:51 – 14:01
- 9♀︎ Venus14:01 – 15:10
- 10☿︎ Mercury15:10 – 16:20
- 11☽︎ Moon16:20 – 17:29
- 12♄︎ Saturn17:29 – 18:39
Night
- 1♃︎ Jupiter18:39 – 19:30
- 2♂︎ Mars19:30 – 20:20
- 3☉︎ Sun20:20 – 21:10
- 4♀︎ Venus21:10 – 22:01
- 5☿︎ Mercury22:01 – 22:51
- 6☽︎ Moon22:51 – 23:42
- 7♄︎ Saturn23:42 – 00:32
- 8♃︎ Jupiter00:32 – 01:23
- 9♂︎ Mars01:23 – 02:13
- 10☉︎ Sun02:13 – 03:04
- 11♀︎ Venus03:04 – 03:54
- 12☿︎ Mercury03:54 – 04:45
Questions
How are the planetary hours calculated in Sendai?
On Sunday, 8 August 2027, the Sun rises at 04:44 and sets at 18:39: the day lasts 13h 55m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 04:45, lasts 10h 06m: twelve night hours of 50 min.
Which planet rules the first hour that day?
The Sun, from 04:44 to 05:53: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.