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, 19 January 2027: day of Mars
- Sunrise
- 05:25
- Sunset
- 17:54
- Next sunrise
- 05:25
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Asia/Jakarta).
Day
- 1♂︎ Mars05:25 – 06:27
- 2☉︎ Sun06:27 – 07:29
- 3♀︎ Venus07:29 – 08:32
- 4☿︎ Mercury08:32 – 09:34
- 5☽︎ Moon09:34 – 10:37
- 6♄︎ Saturn10:37 – 11:39
- 7♃︎ Jupiter11:39 – 12:41
- 8♂︎ Mars12:41 – 13:44
- 9☉︎ Sun13:44 – 14:46
- 10♀︎ Venus14:46 – 15:49
- 11☿︎ Mercury15:49 – 16:51
- 12☽︎ Moon16:51 – 17:54
Night
- 1♄︎ Saturn17:54 – 18:51
- 2♃︎ Jupiter18:51 – 19:49
- 3♂︎ Mars19:49 – 20:46
- 4☉︎ Sun20:46 – 21:44
- 5♀︎ Venus21:44 – 22:42
- 6☿︎ Mercury22:42 – 23:39
- 7☽︎ Moon23:39 – 00:37
- 8♄︎ Saturn00:37 – 01:34
- 9♃︎ Jupiter01:34 – 02:32
- 10♂︎ Mars02:32 – 03:30
- 11☉︎ Sun03:30 – 04:27
- 12♀︎ Venus04:27 – 05:25
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Questions
How are the planetary hours calculated in Surabaya?
On Tuesday, 19 January 2027, the Sun rises at 05:25 and sets at 17:54: the day lasts 12h 29m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 05:25, lasts 11h 31m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mars, from 05:25 to 06:27: 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.