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 Sunday, 19 October 2025: day of the Sun
- Sunrise
- 05:49
- Sunset
- 16:59
- Next sunrise
- 05:50
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Asia/Tokyo).
Day
- 1☉︎ Sun05:49 – 06:45
- 2♀︎ Venus06:45 – 07:40
- 3☿︎ Mercury07:40 – 08:36
- 4☽︎ Moon08:36 – 09:32
- 5♄︎ Saturn09:32 – 10:28
- 6♃︎ Jupiter10:28 – 11:24
- 7♂︎ Mars11:24 – 12:20
- 8☉︎ Sun12:20 – 13:15
- 9♀︎ Venus13:15 – 14:11
- 10☿︎ Mercury14:11 – 15:07
- 11☽︎ Moon15:07 – 16:03
- 12♄︎ Saturn16:03 – 16:59
Night
- 1♃︎ Jupiter16:59 – 18:03
- 2♂︎ Mars18:03 – 19:07
- 3☉︎ Sun19:07 – 20:12
- 4♀︎ Venus20:12 – 21:16
- 5☿︎ Mercury21:16 – 22:20
- 6☽︎ Moon22:20 – 23:24
- 7♄︎ Saturn23:24 – 00:28
- 8♃︎ Jupiter00:28 – 01:33
- 9♂︎ Mars01:33 – 02:37
- 10☉︎ Sun02:37 – 03:41
- 11♀︎ Venus03:41 – 04:45
- 12☿︎ Mercury04:45 – 05:50
Questions
How are the planetary hours calculated in Chiba?
On Sunday, 19 October 2025, the Sun rises at 05:49 and sets at 16:59: the day lasts 11h 10m, that is twelve day hours of 56 min. The night, until the next sunrise at 05:50, lasts 12h 51m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
The Sun, from 05:49 to 06:45: 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.