Planetary hours
in Chiba.
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, 12 August 2026: day of Mercury
- Sunrise
- 04:55
- Sunset
- 18:32
- Next sunrise
- 04:56
A day hour lasts 1h 08m; a night hour, 52 min. Local time (Asia/Tokyo).
Day
- 1☿︎ Mercury04:55 – 06:03
- 2☽︎ Moon06:03 – 07:12
- 3♄︎ Saturn07:12 – 08:20
- 4♃︎ Jupiter08:20 – 09:28
- 5♂︎ Mars09:28 – 10:36
- 6☉︎ Sun10:36 – 11:44
- 7♀︎ Venus11:44 – 12:52
- 8☿︎ Mercury12:52 – 14:00
- 9☽︎ Moon14:00 – 15:08
- 10♄︎ Saturn15:08 – 16:16
- 11♃︎ Jupiter16:16 – 17:24
- 12♂︎ Mars17:24 – 18:32
Night
- 1☉︎ Sun18:32 – 19:24
- 2♀︎ Venus19:24 – 20:16
- 3☿︎ Mercury20:16 – 21:08
- 4☽︎ Moon21:08 – 22:00
- 5♄︎ Saturn22:00 – 22:52
- 6♃︎ Jupiter22:52 – 23:44
- 7♂︎ Mars23:44 – 00:36
- 8☉︎ Sun00:36 – 01:28
- 9♀︎ Venus01:28 – 02:20
- 10☿︎ Mercury02:20 – 03:12
- 11☽︎ Moon03:12 – 04:04
- 12♄︎ Saturn04:04 – 04:56
Questions
How are the planetary hours calculated in Chiba?
On Wednesday, 12 August 2026, the Sun rises at 04:55 and sets at 18:32: the day lasts 13h 37m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 04:56, lasts 10h 24m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Mercury, from 04:55 to 06:03: 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.