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 Friday, 17 July 2026: day of Venus
- Sunrise
- 04:36
- Sunset
- 18:54
- Next sunrise
- 04:37
A day hour lasts 1h 12m; a night hour, 49 min. Local time (Asia/Tokyo).
Day
- 1♀︎ Venus04:36 – 05:47
- 2☿︎ Mercury05:47 – 06:59
- 3☽︎ Moon06:59 – 08:10
- 4♄︎ Saturn08:10 – 09:22
- 5♃︎ Jupiter09:22 – 10:33
- 6♂︎ Mars10:33 – 11:45
- 7☉︎ Sun11:45 – 12:57
- 8♀︎ Venus12:57 – 14:08
- 9☿︎ Mercury14:08 – 15:20
- 10☽︎ Moon15:20 – 16:31
- 11♄︎ Saturn16:31 – 17:43
- 12♃︎ Jupiter17:43 – 18:54
Night
- 1♂︎ Mars18:54 – 19:43
- 2☉︎ Sun19:43 – 20:31
- 3♀︎ Venus20:31 – 21:20
- 4☿︎ Mercury21:20 – 22:08
- 5☽︎ Moon22:08 – 22:57
- 6♄︎ Saturn22:57 – 23:45
- 7♃︎ Jupiter23:45 – 00:34
- 8♂︎ Mars00:34 – 01:22
- 9☉︎ Sun01:22 – 02:11
- 10♀︎ Venus02:11 – 02:59
- 11☿︎ Mercury02:59 – 03:48
- 12☽︎ Moon03:48 – 04:37
Questions
How are the planetary hours calculated in Chiba?
On Friday, 17 July 2026, the Sun rises at 04:36 and sets at 18:54: the day lasts 14h 18m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 04:37, lasts 9h 42m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Venus, from 04:36 to 05:47: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.