Planetary hours
in Semarang.
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
- 05:34
- Sunset
- 18:02
- Next sunrise
- 05:35
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Asia/Jakarta).
Day
- 1♂︎ Mars05:34 – 06:37
- 2☉︎ Sun06:37 – 07:39
- 3♀︎ Venus07:39 – 08:41
- 4☿︎ Mercury08:41 – 09:44
- 5☽︎ Moon09:44 – 10:46
- 6♄︎ Saturn10:46 – 11:48
- 7♃︎ Jupiter11:48 – 12:51
- 8♂︎ Mars12:51 – 13:53
- 9☉︎ Sun13:53 – 14:55
- 10♀︎ Venus14:55 – 15:58
- 11☿︎ Mercury15:58 – 17:00
- 12☽︎ Moon17:00 – 18:02
Night
- 1♄︎ Saturn18:02 – 19:00
- 2♃︎ Jupiter19:00 – 19:58
- 3♂︎ Mars19:58 – 20:55
- 4☉︎ Sun20:55 – 21:53
- 5♀︎ Venus21:53 – 22:51
- 6☿︎ Mercury22:51 – 23:49
- 7☽︎ Moon23:49 – 00:46
- 8♄︎ Saturn00:46 – 01:44
- 9♃︎ Jupiter01:44 – 02:42
- 10♂︎ Mars02:42 – 03:39
- 11☉︎ Sun03:39 – 04:37
- 12♀︎ Venus04:37 – 05:35
Other cities · Indonesia
Questions
How are the planetary hours calculated in Semarang?
On Tuesday, 19 January 2027, the Sun rises at 05:34 and sets at 18:02: the day lasts 12h 28m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 05:35, lasts 11h 32m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mars, from 05:34 to 06:37: 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.