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, 15 May 2025: day of Jupiter
- Sunrise
- 04:34
- Sunset
- 18:37
- Next sunrise
- 04:34
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Asia/Tokyo).
Day
- 1♃︎ Jupiter04:34 – 05:45
- 2♂︎ Mars05:45 – 06:55
- 3☉︎ Sun06:55 – 08:05
- 4♀︎ Venus08:05 – 09:15
- 5☿︎ Mercury09:15 – 10:25
- 6☽︎ Moon10:25 – 11:36
- 7♄︎ Saturn11:36 – 12:46
- 8♃︎ Jupiter12:46 – 13:56
- 9♂︎ Mars13:56 – 15:06
- 10☉︎ Sun15:06 – 16:16
- 11♀︎ Venus16:16 – 17:27
- 12☿︎ Mercury17:27 – 18:37
Night
- 1☽︎ Moon18:37 – 19:27
- 2♄︎ Saturn19:27 – 20:16
- 3♃︎ Jupiter20:16 – 21:06
- 4♂︎ Mars21:06 – 21:56
- 5☉︎ Sun21:56 – 22:46
- 6♀︎ Venus22:46 – 23:35
- 7☿︎ Mercury23:35 – 00:25
- 8☽︎ Moon00:25 – 01:15
- 9♄︎ Saturn01:15 – 02:04
- 10♃︎ Jupiter02:04 – 02:54
- 11♂︎ Mars02:54 – 03:44
- 12☉︎ Sun03:44 – 04:34
Questions
How are the planetary hours calculated in Chiba?
On Thursday, 15 May 2025, the Sun rises at 04:34 and sets at 18:37: the day lasts 14h 02m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 04:34, lasts 9h 57m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Jupiter, from 04:34 to 05:45: 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.