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 Tuesday, 11 August 2026: day of Mars
- Sunrise
- 05:15
- Sunset
- 18:50
- Next sunrise
- 05:15
A day hour lasts 1h 08m; a night hour, 52 min. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars05:15 – 06:23
- 2☉︎ Sun06:23 – 07:31
- 3♀︎ Venus07:31 – 08:39
- 4☿︎ Mercury08:39 – 09:47
- 5☽︎ Moon09:47 – 10:55
- 6♄︎ Saturn10:55 – 12:03
- 7♃︎ Jupiter12:03 – 13:10
- 8♂︎ Mars13:10 – 14:18
- 9☉︎ Sun14:18 – 15:26
- 10♀︎ Venus15:26 – 16:34
- 11☿︎ Mercury16:34 – 17:42
- 12☽︎ Moon17:42 – 18:50
Night
- 1♄︎ Saturn18:50 – 19:42
- 2♃︎ Jupiter19:42 – 20:35
- 3♂︎ Mars20:35 – 21:27
- 4☉︎ Sun21:27 – 22:19
- 5♀︎ Venus22:19 – 23:11
- 6☿︎ Mercury23:11 – 00:03
- 7☽︎ Moon00:03 – 00:55
- 8♄︎ Saturn00:55 – 01:47
- 9♃︎ Jupiter01:47 – 02:39
- 10♂︎ Mars02:39 – 03:31
- 11☉︎ Sun03:31 – 04:23
- 12♀︎ Venus04:23 – 05:15
Questions
How are the planetary hours calculated in Osaka?
On Tuesday, 11 August 2026, the Sun rises at 05:15 and sets at 18:50: the day lasts 13h 36m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:15, lasts 10h 25m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Mars, from 05:15 to 06:23: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.