Planetary hours
in Tehran.
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 Wednesday, 20 January 2027: day of Mercury
- Sunrise
- 07:11
- Sunset
- 17:18
- Next sunrise
- 07:11
A day hour lasts 51 min; a night hour, 1h 09m. Local time (Asia/Tehran).
Day
- 1☿︎ Mercury07:11 – 08:02
- 2☽︎ Moon08:02 – 08:53
- 3♄︎ Saturn08:53 – 09:43
- 4♃︎ Jupiter09:43 – 10:34
- 5♂︎ Mars10:34 – 11:24
- 6☉︎ Sun11:24 – 12:15
- 7♀︎ Venus12:15 – 13:05
- 8☿︎ Mercury13:05 – 13:56
- 9☽︎ Moon13:56 – 14:47
- 10♄︎ Saturn14:47 – 15:37
- 11♃︎ Jupiter15:37 – 16:28
- 12♂︎ Mars16:28 – 17:18
Night
- 1☉︎ Sun17:18 – 18:28
- 2♀︎ Venus18:28 – 19:37
- 3☿︎ Mercury19:37 – 20:47
- 4☽︎ Moon20:47 – 21:56
- 5♄︎ Saturn21:56 – 23:05
- 6♃︎ Jupiter23:05 – 00:15
- 7♂︎ Mars00:15 – 01:24
- 8☉︎ Sun01:24 – 02:33
- 9♀︎ Venus02:33 – 03:43
- 10☿︎ Mercury03:43 – 04:52
- 11☽︎ Moon04:52 – 06:02
- 12♄︎ Saturn06:02 – 07:11
Questions
How are the planetary hours calculated in Tehran?
On Wednesday, 20 January 2027, the Sun rises at 07:11 and sets at 17:18: the day lasts 10h 07m, that is twelve day hours of 51 min. The night, until the next sunrise at 07:11, lasts 13h 53m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
Mercury, from 07:11 to 08:02: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.