Sunrise and Sunset times in Zir Deh, Iran 
Zir Deh
Gīlān
Time zone: Asia/Tehran, UTC 3.5 h.
Latitude: 37.4038, Longitude: 49.6607
| Date | Sunrise | Solar Noon | Sunset | Length of day |
|---|---|---|---|---|
| 2025-Jul-01, Tuesday | 04:54:19 | 12:15:17 | 19:36:14 | 14h 41m 55s |
| 2025-Jul-02, Wednesday | 04:54:47 | 12:15:28 | 19:36:09 | 14h 41m 22s |
| 2025-Jul-03, Thursday | 04:55:17 | 12:15:39 | 19:36:01 | 14h 40m 44s |
| 2025-Jul-04, Friday | 04:55:48 | 12:15:50 | 19:35:52 | 14h 40m 4s |
| 2025-Jul-05, Saturday | 04:56:20 | 12:16:00 | 19:35:40 | 14h 39m 20s |
| 2025-Jul-06, Sunday | 04:56:53 | 12:16:10 | 19:35:27 | 14h 38m 34s |
| 2025-Jul-07, Monday | 04:57:28 | 12:16:20 | 19:35:12 | 14h 37m 44s |
| 2025-Jul-08, Tuesday | 04:58:03 | 12:16:29 | 19:34:56 | 14h 36m 53s |
| 2025-Jul-09, Wednesday | 04:58:39 | 12:16:38 | 19:34:37 | 14h 35m 58s |
| 2025-Jul-10, Thursday | 04:59:17 | 12:16:47 | 19:34:17 | 14h 35m 0s |
| 2025-Jul-11, Friday | 04:59:55 | 12:16:55 | 19:33:55 | 14h 34m 0s |
| 2025-Jul-12, Saturday | 05:00:34 | 12:17:03 | 19:33:31 | 14h 32m 57s |
| 2025-Jul-13, Sunday | 05:01:14 | 12:17:10 | 19:33:05 | 14h 31m 51s |
| 2025-Jul-14, Monday | 05:01:55 | 12:17:16 | 19:32:38 | 14h 30m 43s |
| 2025-Jul-15, Tuesday | 05:02:37 | 12:17:23 | 19:32:08 | 14h 29m 31s |
| 2025-Jul-16, Wednesday | 05:03:19 | 12:17:28 | 19:31:37 | 14h 28m 18s |
| 2025-Jul-17, Thursday | 05:04:03 | 12:17:33 | 19:31:04 | 14h 27m 1s |
| 2025-Jul-18, Friday | 05:04:46 | 12:17:38 | 19:30:30 | 14h 25m 44s |
| 2025-Jul-19, Saturday | 05:05:31 | 12:17:42 | 19:29:53 | 14h 24m 22s |
| 2025-Jul-20, Sunday | 05:06:16 | 12:17:46 | 19:29:15 | 14h 22m 59s |
| 2025-Jul-21, Monday | 05:07:01 | 12:17:49 | 19:28:36 | 14h 21m 35s |
| 2025-Jul-22, Tuesday | 05:07:48 | 12:17:51 | 19:27:54 | 14h 20m 6s |
| 2025-Jul-23, Wednesday | 05:08:34 | 12:17:53 | 19:27:11 | 14h 18m 37s |
| 2025-Jul-24, Thursday | 05:09:21 | 12:17:54 | 19:26:27 | 14h 17m 6s |
| 2025-Jul-25, Friday | 05:10:09 | 12:17:55 | 19:25:40 | 14h 15m 31s |
| 2025-Jul-26, Saturday | 05:10:57 | 12:17:55 | 19:24:52 | 14h 13m 55s |
| 2025-Jul-27, Sunday | 05:11:45 | 12:17:54 | 19:24:03 | 14h 12m 18s |
| 2025-Jul-28, Monday | 05:12:34 | 12:17:53 | 19:23:12 | 14h 10m 38s |
| 2025-Jul-29, Tuesday | 05:13:23 | 12:17:51 | 19:22:20 | 14h 8m 57s |
| 2025-Jul-30, Wednesday | 05:14:12 | 12:17:49 | 19:21:26 | 14h 7m 14s |
| 2025-Jul-31, Thursday | 05:15:01 | 12:17:46 | 19:20:30 | 14h 5m 29s |
Zir Deh on Iran map:
Cities in the same time zone Asia/Tehran
Tehran (Tehrān), Mashhad (Khorāsān-e Raẕavī), Esfahan (Eşfahān), Karaj (Alborz), Tabriz (Āz̄arbāyjān-e Sharqī), Shiraz (Fārs), Ahvaz (Khūzestān), Qom (Qom), Kermanshah (Kermānshāh), Zahedan (Sīstān va Balūchestān), Rasht (Gīlān), Kerman (Kermān), Orumiyeh (Āz̄arbāyjān-e Gharbī), Hamadan (Hamadān), Arak (Markazī), Yazd (Yazd), Qazvin (Qazvīn), Bandar `Abbas (Hormozgān), Khomeyni Shahr (Eşfahān), Ardabil (Ardabīl), Khorramabad (Lorestān), Madan (Khūzestān), Zanjan (Zanjān), Sanandaj (Kordestān), Birjand (Khorāsān-e Jonūbī), Dezful (Khūzestān), Gorgan (Golestān), Sar Pol (Māzandarān), Borujerd (Lorestān), Kashan (Eşfahān)
Largest Populated Areas in Iran
Tehran (Tehrān), Mashhad (Khorāsān-e Raẕavī), Esfahan (Eşfahān), Karaj (Alborz), Tabriz (Āz̄arbāyjān-e Sharqī), Shiraz (Fārs), Ahvaz (Khūzestān), Qom (Qom), Kermanshah (Kermānshāh), Zahedan (Sīstān va Balūchestān), Rasht (Gīlān), Kerman (Kermān), Orumiyeh (Āz̄arbāyjān-e Gharbī), Hamadan (Hamadān), Arak (Markazī), Yazd (Yazd), Qazvin (Qazvīn), Bandar `Abbas (Hormozgān), Khomeyni Shahr (Eşfahān), Ardabil (Ardabīl), Khorramabad (Lorestān), Madan (Khūzestān), Zanjan (Zanjān), Sanandaj (Kordestān), Birjand (Khorāsān-e Jonūbī), Dezful (Khūzestān), Gorgan (Golestān), Sar Pol (Māzandarān), Borujerd (Lorestān), Kashan (Eşfahān)
Daylight Hours FAQ: 10 Most Googled Questions Answered
1. What are daylight hours?
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
2. Why are days shorter in winter and longer in summer?
Earth's 23.5° axial tilt causes uneven sunlight distribution. Your hemisphere receives less direct sunlight in winter (shorter days) and more in summer (longer days).
3. When is the longest day of the year?
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
4. When is the shortest day of the year?
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
5. How does latitude affect daylight hours?
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
6. Why do New York and Miami have different day lengths?
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
7. When are day and night equal?
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
How fast do days lengthen/shorten?
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
9. Where can I check daylight hours for my city?
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
10. Does daylight affect health?
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks