Planetary hours
in Surabaya.
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 September 2027: day of Mars
- Sunrise
- 05:19
- Sunset
- 17:25
- Next sunrise
- 05:18
A day hour lasts 1h 00m; a night hour, 59 min. Local time (Asia/Jakarta).
Day
- 1♂︎ Mars05:19 – 06:19
- 2☉︎ Sun06:19 – 07:20
- 3♀︎ Venus07:20 – 08:20
- 4☿︎ Mercury08:20 – 09:21
- 5☽︎ Moon09:21 – 10:21
- 6♄︎ Saturn10:21 – 11:22
- 7♃︎ Jupiter11:22 – 12:22
- 8♂︎ Mars12:22 – 13:23
- 9☉︎ Sun13:23 – 14:23
- 10♀︎ Venus14:23 – 15:24
- 11☿︎ Mercury15:24 – 16:24
- 12☽︎ Moon16:24 – 17:25
Night
- 1♄︎ Saturn17:25 – 18:24
- 2♃︎ Jupiter18:24 – 19:24
- 3♂︎ Mars19:24 – 20:23
- 4☉︎ Sun20:23 – 21:23
- 5♀︎ Venus21:23 – 22:22
- 6☿︎ Mercury22:22 – 23:22
- 7☽︎ Moon23:22 – 00:21
- 8♄︎ Saturn00:21 – 01:20
- 9♃︎ Jupiter01:20 – 02:20
- 10♂︎ Mars02:20 – 03:19
- 11☉︎ Sun03:19 – 04:19
- 12♀︎ Venus04:19 – 05:18
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Questions
How are the planetary hours calculated in Surabaya?
On Tuesday, 21 September 2027, the Sun rises at 05:19 and sets at 17:25: the day lasts 12h 06m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 05:18, lasts 11h 54m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Mars, from 05:19 to 06:19: 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.