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 Saturday, 17 October 2026: day of Saturn
- Sunrise
- 06:04
- Sunset
- 17:21
- Next sunrise
- 06:05
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Asia/Tokyo).
Day
- 1♄︎ Saturn06:04 – 07:01
- 2♃︎ Jupiter07:01 – 07:57
- 3♂︎ Mars07:57 – 08:54
- 4☉︎ Sun08:54 – 09:50
- 5♀︎ Venus09:50 – 10:46
- 6☿︎ Mercury10:46 – 11:43
- 7☽︎ Moon11:43 – 12:39
- 8♄︎ Saturn12:39 – 13:35
- 9♃︎ Jupiter13:35 – 14:32
- 10♂︎ Mars14:32 – 15:28
- 11☉︎ Sun15:28 – 16:25
- 12♀︎ Venus16:25 – 17:21
Night
- 1☿︎ Mercury17:21 – 18:25
- 2☽︎ Moon18:25 – 19:28
- 3♄︎ Saturn19:28 – 20:32
- 4♃︎ Jupiter20:32 – 21:36
- 5♂︎ Mars21:36 – 22:39
- 6☉︎ Sun22:39 – 23:43
- 7♀︎ Venus23:43 – 00:47
- 8☿︎ Mercury00:47 – 01:50
- 9☽︎ Moon01:50 – 02:54
- 10♄︎ Saturn02:54 – 03:58
- 11♃︎ Jupiter03:58 – 05:02
- 12♂︎ Mars05:02 – 06:05
Questions
How are the planetary hours calculated in Osaka?
On Saturday, 17 October 2026, the Sun rises at 06:04 and sets at 17:21: the day lasts 11h 17m, that is twelve day hours of 56 min. The night, until the next sunrise at 06:05, lasts 12h 44m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Saturn, from 06:04 to 07:01: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.