Planetary hours
in Medan.
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, 13 December 2026: day of the Sun
- Sunrise
- 06:21
- Sunset
- 18:16
- Next sunrise
- 06:22
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Asia/Jakarta).
Day
- 1☉︎ Sun06:21 – 07:21
- 2♀︎ Venus07:21 – 08:20
- 3☿︎ Mercury08:20 – 09:20
- 4☽︎ Moon09:20 – 10:20
- 5♄︎ Saturn10:20 – 11:19
- 6♃︎ Jupiter11:19 – 12:19
- 7♂︎ Mars12:19 – 13:18
- 8☉︎ Sun13:18 – 14:18
- 9♀︎ Venus14:18 – 15:18
- 10☿︎ Mercury15:18 – 16:17
- 11☽︎ Moon16:17 – 17:17
- 12♄︎ Saturn17:17 – 18:16
Night
- 1♃︎ Jupiter18:16 – 19:17
- 2♂︎ Mars19:17 – 20:17
- 3☉︎ Sun20:17 – 21:18
- 4♀︎ Venus21:18 – 22:18
- 5☿︎ Mercury22:18 – 23:19
- 6☽︎ Moon23:19 – 00:19
- 7♄︎ Saturn00:19 – 01:20
- 8♃︎ Jupiter01:20 – 02:20
- 9♂︎ Mars02:20 – 03:20
- 10☉︎ Sun03:20 – 04:21
- 11♀︎ Venus04:21 – 05:21
- 12☿︎ Mercury05:21 – 06:22
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Questions
How are the planetary hours calculated in Medan?
On Sunday, 13 December 2026, the Sun rises at 06:21 and sets at 18:16: the day lasts 11h 55m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 06:22, lasts 12h 05m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
The Sun, from 06:21 to 07:21: 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.