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 Thursday, 22 May 2025: day of Jupiter
- Sunrise
- 04:30
- Sunset
- 18:42
- Next sunrise
- 04:29
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Asia/Tokyo).
Day
- 1♃︎ Jupiter04:30 – 05:41
- 2♂︎ Mars05:41 – 06:52
- 3☉︎ Sun06:52 – 08:03
- 4♀︎ Venus08:03 – 09:14
- 5☿︎ Mercury09:14 – 10:25
- 6☽︎ Moon10:25 – 11:36
- 7♄︎ Saturn11:36 – 12:47
- 8♃︎ Jupiter12:47 – 13:58
- 9♂︎ Mars13:58 – 15:09
- 10☉︎ Sun15:09 – 16:20
- 11♀︎ Venus16:20 – 17:31
- 12☿︎ Mercury17:31 – 18:42
Night
- 1☽︎ Moon18:42 – 19:31
- 2♄︎ Saturn19:31 – 20:20
- 3♃︎ Jupiter20:20 – 21:09
- 4♂︎ Mars21:09 – 21:58
- 5☉︎ Sun21:58 – 22:47
- 6♀︎ Venus22:47 – 23:36
- 7☿︎ Mercury23:36 – 00:24
- 8☽︎ Moon00:24 – 01:13
- 9♄︎ Saturn01:13 – 02:02
- 10♃︎ Jupiter02:02 – 02:51
- 11♂︎ Mars02:51 – 03:40
- 12☉︎ Sun03:40 – 04:29
Questions
How are the planetary hours calculated in Chiba?
On Thursday, 22 May 2025, the Sun rises at 04:30 and sets at 18:42: the day lasts 14h 13m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 04:29, lasts 9h 47m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Jupiter, from 04:30 to 05:41: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.