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, 30 May 2027: day of the Sun
- Sunrise
- 04:16
- Sunset
- 18:52
- Next sunrise
- 04:15
A day hour lasts 1h 13m; a night hour, 47 min. Local time (Asia/Tokyo).
Day
- 1☉︎ Sun04:16 – 05:29
- 2♀︎ Venus05:29 – 06:42
- 3☿︎ Mercury06:42 – 07:55
- 4☽︎ Moon07:55 – 09:08
- 5♄︎ Saturn09:08 – 10:21
- 6♃︎ Jupiter10:21 – 11:34
- 7♂︎ Mars11:34 – 12:47
- 8☉︎ Sun12:47 – 14:00
- 9♀︎ Venus14:00 – 15:13
- 10☿︎ Mercury15:13 – 16:26
- 11☽︎ Moon16:26 – 17:39
- 12♄︎ Saturn17:39 – 18:52
Night
- 1♃︎ Jupiter18:52 – 19:39
- 2♂︎ Mars19:39 – 20:26
- 3☉︎ Sun20:26 – 21:13
- 4♀︎ Venus21:13 – 22:00
- 5☿︎ Mercury22:00 – 22:47
- 6☽︎ Moon22:47 – 23:33
- 7♄︎ Saturn23:33 – 00:20
- 8♃︎ Jupiter00:20 – 01:07
- 9♂︎ Mars01:07 – 01:54
- 10☉︎ Sun01:54 – 02:41
- 11♀︎ Venus02:41 – 03:28
- 12☿︎ Mercury03:28 – 04:15
Questions
How are the planetary hours calculated in Sendai?
On Sunday, 30 May 2027, the Sun rises at 04:16 and sets at 18:52: the day lasts 14h 36m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 04:15, lasts 9h 23m: twelve night hours of 47 min.
Which planet rules the first hour that day?
The Sun, from 04:16 to 05:29: 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.