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 Tuesday, 27 July 2027: day of Mars
- Sunrise
- 04:34
- Sunset
- 18:51
- Next sunrise
- 04:34
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars04:34 – 05:45
- 2☉︎ Sun05:45 – 06:56
- 3♀︎ Venus06:56 – 08:08
- 4☿︎ Mercury08:08 – 09:19
- 5☽︎ Moon09:19 – 10:31
- 6♄︎ Saturn10:31 – 11:42
- 7♃︎ Jupiter11:42 – 12:54
- 8♂︎ Mars12:54 – 14:05
- 9☉︎ Sun14:05 – 15:17
- 10♀︎ Venus15:17 – 16:28
- 11☿︎ Mercury16:28 – 17:40
- 12☽︎ Moon17:40 – 18:51
Night
- 1♄︎ Saturn18:51 – 19:40
- 2♃︎ Jupiter19:40 – 20:28
- 3♂︎ Mars20:28 – 21:17
- 4☉︎ Sun21:17 – 22:06
- 5♀︎ Venus22:06 – 22:54
- 6☿︎ Mercury22:54 – 23:43
- 7☽︎ Moon23:43 – 00:31
- 8♄︎ Saturn00:31 – 01:20
- 9♃︎ Jupiter01:20 – 02:09
- 10♂︎ Mars02:09 – 02:57
- 11☉︎ Sun02:57 – 03:46
- 12♀︎ Venus03:46 – 04:34
Questions
How are the planetary hours calculated in Sendai?
On Tuesday, 27 July 2027, the Sun rises at 04:34 and sets at 18:51: the day lasts 14h 18m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 04:34, lasts 9h 43m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mars, from 04:34 to 05:45: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.