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 Wednesday, 5 November 2025: day of Mercury
- Sunrise
- 06:06
- Sunset
- 16:33
- Next sunrise
- 06:07
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Asia/Tokyo).
Day
- 1☿︎ Mercury06:06 – 06:58
- 2☽︎ Moon06:58 – 07:51
- 3♄︎ Saturn07:51 – 08:43
- 4♃︎ Jupiter08:43 – 09:35
- 5♂︎ Mars09:35 – 10:27
- 6☉︎ Sun10:27 – 11:19
- 7♀︎ Venus11:19 – 12:12
- 8☿︎ Mercury12:12 – 13:04
- 9☽︎ Moon13:04 – 13:56
- 10♄︎ Saturn13:56 – 14:48
- 11♃︎ Jupiter14:48 – 15:40
- 12♂︎ Mars15:40 – 16:33
Night
- 1☉︎ Sun16:33 – 17:40
- 2♀︎ Venus17:40 – 18:48
- 3☿︎ Mercury18:48 – 19:56
- 4☽︎ Moon19:56 – 21:04
- 5♄︎ Saturn21:04 – 22:12
- 6♃︎ Jupiter22:12 – 23:20
- 7♂︎ Mars23:20 – 00:28
- 8☉︎ Sun00:28 – 01:36
- 9♀︎ Venus01:36 – 02:44
- 10☿︎ Mercury02:44 – 03:51
- 11☽︎ Moon03:51 – 04:59
- 12♄︎ Saturn04:59 – 06:07
Questions
How are the planetary hours calculated in Sendai?
On Wednesday, 5 November 2025, the Sun rises at 06:06 and sets at 16:33: the day lasts 10h 26m, that is twelve day hours of 52 min. The night, until the next sunrise at 06:07, lasts 13h 35m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mercury, from 06:06 to 06:58: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.