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, 29 December 2026: day of Mars
- Sunrise
- 05:14
- Sunset
- 17:47
- Next sunrise
- 05:15
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Asia/Jakarta).
Day
- 1♂︎ Mars05:14 – 06:17
- 2☉︎ Sun06:17 – 07:19
- 3♀︎ Venus07:19 – 08:22
- 4☿︎ Mercury08:22 – 09:25
- 5☽︎ Moon09:25 – 10:28
- 6♄︎ Saturn10:28 – 11:30
- 7♃︎ Jupiter11:30 – 12:33
- 8♂︎ Mars12:33 – 13:36
- 9☉︎ Sun13:36 – 14:39
- 10♀︎ Venus14:39 – 15:41
- 11☿︎ Mercury15:41 – 16:44
- 12☽︎ Moon16:44 – 17:47
Night
- 1♄︎ Saturn17:47 – 18:44
- 2♃︎ Jupiter18:44 – 19:41
- 3♂︎ Mars19:41 – 20:39
- 4☉︎ Sun20:39 – 21:36
- 5♀︎ Venus21:36 – 22:33
- 6☿︎ Mercury22:33 – 23:31
- 7☽︎ Moon23:31 – 00:28
- 8♄︎ Saturn00:28 – 01:25
- 9♃︎ Jupiter01:25 – 02:23
- 10♂︎ Mars02:23 – 03:20
- 11☉︎ Sun03:20 – 04:17
- 12♀︎ Venus04:17 – 05:15
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Questions
How are the planetary hours calculated in Surabaya?
On Tuesday, 29 December 2026, the Sun rises at 05:14 and sets at 17:47: the day lasts 12h 33m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:15, lasts 11h 28m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Mars, from 05:14 to 06:17: 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.