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, 30 December 2026: day of Mercury
- Sunrise
- 07:13
- Sunset
- 17:00
- Next sunrise
- 07:13
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Asia/Tehran).
Day
- 1☿︎ Mercury07:13 – 08:02
- 2☽︎ Moon08:02 – 08:51
- 3♄︎ Saturn08:51 – 09:40
- 4♃︎ Jupiter09:40 – 10:29
- 5♂︎ Mars10:29 – 11:17
- 6☉︎ Sun11:17 – 12:06
- 7♀︎ Venus12:06 – 12:55
- 8☿︎ Mercury12:55 – 13:44
- 9☽︎ Moon13:44 – 14:33
- 10♄︎ Saturn14:33 – 15:22
- 11♃︎ Jupiter15:22 – 16:11
- 12♂︎ Mars16:11 – 17:00
Night
- 1☉︎ Sun17:00 – 18:11
- 2♀︎ Venus18:11 – 19:22
- 3☿︎ Mercury19:22 – 20:33
- 4☽︎ Moon20:33 – 21:44
- 5♄︎ Saturn21:44 – 22:55
- 6♃︎ Jupiter22:55 – 00:06
- 7♂︎ Mars00:06 – 01:18
- 8☉︎ Sun01:18 – 02:29
- 9♀︎ Venus02:29 – 03:40
- 10☿︎ Mercury03:40 – 04:51
- 11☽︎ Moon04:51 – 06:02
- 12♄︎ Saturn06:02 – 07:13
Questions
How are the planetary hours calculated in Tehran?
On Wednesday, 30 December 2026, the Sun rises at 07:13 and sets at 17:00: the day lasts 9h 46m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:13, lasts 14h 14m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Mercury, from 07:13 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.