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, 16 August 2026: day of the Sun
- Sunrise
- 04:58
- Sunset
- 18:28
- Next sunrise
- 04:59
A day hour lasts 1h 07m; a night hour, 53 min. Local time (Asia/Tokyo).
Day
- 1☉︎ Sun04:58 – 06:06
- 2♀︎ Venus06:06 – 07:13
- 3☿︎ Mercury07:13 – 08:21
- 4☽︎ Moon08:21 – 09:28
- 5♄︎ Saturn09:28 – 10:36
- 6♃︎ Jupiter10:36 – 11:43
- 7♂︎ Mars11:43 – 12:51
- 8☉︎ Sun12:51 – 13:58
- 9♀︎ Venus13:58 – 15:05
- 10☿︎ Mercury15:05 – 16:13
- 11☽︎ Moon16:13 – 17:20
- 12♄︎ Saturn17:20 – 18:28
Night
- 1♃︎ Jupiter18:28 – 19:20
- 2♂︎ Mars19:20 – 20:13
- 3☉︎ Sun20:13 – 21:06
- 4♀︎ Venus21:06 – 21:58
- 5☿︎ Mercury21:58 – 22:51
- 6☽︎ Moon22:51 – 23:44
- 7♄︎ Saturn23:44 – 00:36
- 8♃︎ Jupiter00:36 – 01:29
- 9♂︎ Mars01:29 – 02:21
- 10☉︎ Sun02:21 – 03:14
- 11♀︎ Venus03:14 – 04:07
- 12☿︎ Mercury04:07 – 04:59
Questions
How are the planetary hours calculated in Chiba?
On Sunday, 16 August 2026, the Sun rises at 04:58 and sets at 18:28: the day lasts 13h 29m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 04:59, lasts 10h 32m: twelve night hours of 53 min.
Which planet rules the first hour that day?
The Sun, from 04:58 to 06:06: 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.