Planetary hours
in Yokohama.
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 Wednesday, 17 June 2026: day of Mercury
- Sunrise
- 04:25
- Sunset
- 18:58
- Next sunrise
- 04:26
A day hour lasts 1h 13m; a night hour, 47 min. Local time (Asia/Tokyo).
Day
- 1☿︎ Mercury04:25 – 05:38
- 2☽︎ Moon05:38 – 06:51
- 3♄︎ Saturn06:51 – 08:04
- 4♃︎ Jupiter08:04 – 09:16
- 5♂︎ Mars09:16 – 10:29
- 6☉︎ Sun10:29 – 11:42
- 7♀︎ Venus11:42 – 12:55
- 8☿︎ Mercury12:55 – 14:07
- 9☽︎ Moon14:07 – 15:20
- 10♄︎ Saturn15:20 – 16:33
- 11♃︎ Jupiter16:33 – 17:45
- 12♂︎ Mars17:45 – 18:58
Night
- 1☉︎ Sun18:58 – 19:45
- 2♀︎ Venus19:45 – 20:33
- 3☿︎ Mercury20:33 – 21:20
- 4☽︎ Moon21:20 – 22:07
- 5♄︎ Saturn22:07 – 22:55
- 6♃︎ Jupiter22:55 – 23:42
- 7♂︎ Mars23:42 – 00:29
- 8☉︎ Sun00:29 – 01:16
- 9♀︎ Venus01:16 – 02:04
- 10☿︎ Mercury02:04 – 02:51
- 11☽︎ Moon02:51 – 03:38
- 12♄︎ Saturn03:38 – 04:26
Questions
How are the planetary hours calculated in Yokohama?
On Wednesday, 17 June 2026, the Sun rises at 04:25 and sets at 18:58: the day lasts 14h 33m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 04:26, lasts 9h 27m: twelve night hours of 47 min.
Which planet rules the first hour that day?
Mercury, from 04:25 to 05:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.