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 Sunday, 27 December 2026: day of the Sun
- Sunrise
- 05:13
- Sunset
- 17:46
- Next sunrise
- 05:14
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Asia/Jakarta).
Day
- 1☉︎ Sun05:13 – 06:16
- 2♀︎ Venus06:16 – 07:18
- 3☿︎ Mercury07:18 – 08:21
- 4☽︎ Moon08:21 – 09:24
- 5♄︎ Saturn09:24 – 10:27
- 6♃︎ Jupiter10:27 – 11:29
- 7♂︎ Mars11:29 – 12:32
- 8☉︎ Sun12:32 – 13:35
- 9♀︎ Venus13:35 – 14:38
- 10☿︎ Mercury14:38 – 15:40
- 11☽︎ Moon15:40 – 16:43
- 12♄︎ Saturn16:43 – 17:46
Night
- 1♃︎ Jupiter17:46 – 18:43
- 2♂︎ Mars18:43 – 19:40
- 3☉︎ Sun19:40 – 20:38
- 4♀︎ Venus20:38 – 21:35
- 5☿︎ Mercury21:35 – 22:32
- 6☽︎ Moon22:32 – 23:30
- 7♄︎ Saturn23:30 – 00:27
- 8♃︎ Jupiter00:27 – 01:24
- 9♂︎ Mars01:24 – 02:22
- 10☉︎ Sun02:22 – 03:19
- 11♀︎ Venus03:19 – 04:16
- 12☿︎ Mercury04:16 – 05:14
Other cities · Indonesia
Questions
How are the planetary hours calculated in Surabaya?
On Sunday, 27 December 2026, the Sun rises at 05:13 and sets at 17:46: the day lasts 12h 33m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:14, lasts 11h 28m: twelve night hours of 57 min.
Which planet rules the first hour that day?
The Sun, from 05:13 to 06:16: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.