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, 19 December 2028: day of Mars
- Sunrise
- 06:48
- Sunset
- 16:18
- Next sunrise
- 06:49
A day hour lasts 48 min; a night hour, 1h 13m. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars06:48 – 07:36
- 2☉︎ Sun07:36 – 08:23
- 3♀︎ Venus08:23 – 09:11
- 4☿︎ Mercury09:11 – 09:58
- 5☽︎ Moon09:58 – 10:46
- 6♄︎ Saturn10:46 – 11:33
- 7♃︎ Jupiter11:33 – 12:21
- 8♂︎ Mars12:21 – 13:08
- 9☉︎ Sun13:08 – 13:56
- 10♀︎ Venus13:56 – 14:43
- 11☿︎ Mercury14:43 – 15:31
- 12☽︎ Moon15:31 – 16:18
Night
- 1♄︎ Saturn16:18 – 17:31
- 2♃︎ Jupiter17:31 – 18:43
- 3♂︎ Mars18:43 – 19:56
- 4☉︎ Sun19:56 – 21:08
- 5♀︎ Venus21:08 – 22:21
- 6☿︎ Mercury22:21 – 23:33
- 7☽︎ Moon23:33 – 00:46
- 8♄︎ Saturn00:46 – 01:58
- 9♃︎ Jupiter01:58 – 03:11
- 10♂︎ Mars03:11 – 04:24
- 11☉︎ Sun04:24 – 05:36
- 12♀︎ Venus05:36 – 06:49
Questions
How are the planetary hours calculated in Sendai?
On Tuesday, 19 December 2028, the Sun rises at 06:48 and sets at 16:18: the day lasts 9h 30m, that is twelve day hours of 48 min. The night, until the next sunrise at 06:49, lasts 14h 30m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Mars, from 06:48 to 07:36: 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.