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 Tuesday, 21 July 2026: day of Mars
- Sunrise
- 04:41
- Sunset
- 18:53
- Next sunrise
- 04:42
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars04:41 – 05:52
- 2☉︎ Sun05:52 – 07:03
- 3♀︎ Venus07:03 – 08:14
- 4☿︎ Mercury08:14 – 09:25
- 5☽︎ Moon09:25 – 10:36
- 6♄︎ Saturn10:36 – 11:47
- 7♃︎ Jupiter11:47 – 12:58
- 8♂︎ Mars12:58 – 14:09
- 9☉︎ Sun14:09 – 15:20
- 10♀︎ Venus15:20 – 16:31
- 11☿︎ Mercury16:31 – 17:42
- 12☽︎ Moon17:42 – 18:53
Night
- 1♄︎ Saturn18:53 – 19:42
- 2♃︎ Jupiter19:42 – 20:31
- 3♂︎ Mars20:31 – 21:20
- 4☉︎ Sun21:20 – 22:09
- 5♀︎ Venus22:09 – 22:58
- 6☿︎ Mercury22:58 – 23:47
- 7☽︎ Moon23:47 – 00:37
- 8♄︎ Saturn00:37 – 01:26
- 9♃︎ Jupiter01:26 – 02:15
- 10♂︎ Mars02:15 – 03:04
- 11☉︎ Sun03:04 – 03:53
- 12♀︎ Venus03:53 – 04:42
Questions
How are the planetary hours calculated in Yokohama?
On Tuesday, 21 July 2026, the Sun rises at 04:41 and sets at 18:53: the day lasts 14h 12m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 04:42, lasts 9h 48m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mars, from 04:41 to 05:52: 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.