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 Friday, 25 December 2026: day of Venus
- Sunrise
- 07:11
- Sunset
- 16:56
- Next sunrise
- 07:12
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Asia/Tehran).
Day
- 1♀︎ Venus07:11 – 08:00
- 2☿︎ Mercury08:00 – 08:49
- 3☽︎ Moon08:49 – 09:38
- 4♄︎ Saturn09:38 – 10:26
- 5♃︎ Jupiter10:26 – 11:15
- 6♂︎ Mars11:15 – 12:04
- 7☉︎ Sun12:04 – 12:53
- 8♀︎ Venus12:53 – 13:41
- 9☿︎ Mercury13:41 – 14:30
- 10☽︎ Moon14:30 – 15:19
- 11♄︎ Saturn15:19 – 16:07
- 12♃︎ Jupiter16:07 – 16:56
Night
- 1♂︎ Mars16:56 – 18:08
- 2☉︎ Sun18:08 – 19:19
- 3♀︎ Venus19:19 – 20:30
- 4☿︎ Mercury20:30 – 21:41
- 5☽︎ Moon21:41 – 22:53
- 6♄︎ Saturn22:53 – 00:04
- 7♃︎ Jupiter00:04 – 01:15
- 8♂︎ Mars01:15 – 02:27
- 9☉︎ Sun02:27 – 03:38
- 10♀︎ Venus03:38 – 04:49
- 11☿︎ Mercury04:49 – 06:01
- 12☽︎ Moon06:01 – 07:12
Questions
How are the planetary hours calculated in Tehran?
On Friday, 25 December 2026, the Sun rises at 07:11 and sets at 16:56: the day lasts 9h 45m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:12, lasts 14h 16m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Venus, from 07:11 to 08:00: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.