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, 8 July 2026: day of Mercury
- Sunrise
- 04:55
- Sunset
- 19:23
- Next sunrise
- 04:56
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Asia/Tehran).
Day
- 1☿︎ Mercury04:55 – 06:07
- 2☽︎ Moon06:07 – 07:20
- 3♄︎ Saturn07:20 – 08:32
- 4♃︎ Jupiter08:32 – 09:44
- 5♂︎ Mars09:44 – 10:57
- 6☉︎ Sun10:57 – 12:09
- 7♀︎ Venus12:09 – 13:21
- 8☿︎ Mercury13:21 – 14:33
- 9☽︎ Moon14:33 – 15:46
- 10♄︎ Saturn15:46 – 16:58
- 11♃︎ Jupiter16:58 – 18:10
- 12♂︎ Mars18:10 – 19:23
Night
- 1☉︎ Sun19:23 – 20:10
- 2♀︎ Venus20:10 – 20:58
- 3☿︎ Mercury20:58 – 21:46
- 4☽︎ Moon21:46 – 22:34
- 5♄︎ Saturn22:34 – 23:21
- 6♃︎ Jupiter23:21 – 00:09
- 7♂︎ Mars00:09 – 00:57
- 8☉︎ Sun00:57 – 01:45
- 9♀︎ Venus01:45 – 02:32
- 10☿︎ Mercury02:32 – 03:20
- 11☽︎ Moon03:20 – 04:08
- 12♄︎ Saturn04:08 – 04:56
Questions
How are the planetary hours calculated in Tehran?
On Wednesday, 8 July 2026, the Sun rises at 04:55 and sets at 19:23: the day lasts 14h 28m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 04:56, lasts 9h 33m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Mercury, from 04:55 to 06:07: 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.