Planetary hours
in Osaka.
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, 4 September 2026: day of Venus
- Sunrise
- 05:32
- Sunset
- 18:20
- Next sunrise
- 05:33
A day hour lasts 1h 04m; a night hour, 56 min. Local time (Asia/Tokyo).
Day
- 1♀︎ Venus05:32 – 06:36
- 2☿︎ Mercury06:36 – 07:40
- 3☽︎ Moon07:40 – 08:44
- 4♄︎ Saturn08:44 – 09:48
- 5♃︎ Jupiter09:48 – 10:52
- 6♂︎ Mars10:52 – 11:56
- 7☉︎ Sun11:56 – 13:00
- 8♀︎ Venus13:00 – 14:04
- 9☿︎ Mercury14:04 – 15:08
- 10☽︎ Moon15:08 – 16:12
- 11♄︎ Saturn16:12 – 17:16
- 12♃︎ Jupiter17:16 – 18:20
Night
- 1♂︎ Mars18:20 – 19:17
- 2☉︎ Sun19:17 – 20:13
- 3♀︎ Venus20:13 – 21:09
- 4☿︎ Mercury21:09 – 22:05
- 5☽︎ Moon22:05 – 23:01
- 6♄︎ Saturn23:01 – 23:57
- 7♃︎ Jupiter23:57 – 00:53
- 8♂︎ Mars00:53 – 01:49
- 9☉︎ Sun01:49 – 02:45
- 10♀︎ Venus02:45 – 03:41
- 11☿︎ Mercury03:41 – 04:37
- 12☽︎ Moon04:37 – 05:33
Questions
How are the planetary hours calculated in Osaka?
On Friday, 4 September 2026, the Sun rises at 05:32 and sets at 18:20: the day lasts 12h 48m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 05:33, lasts 11h 13m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Venus, from 05:32 to 06:36: 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.