Daylight Savings Time Changes in Iran ๐ฎ๐ท (1977)
| Country: | Iran |
| Capital: | Tehran |
| Abbreviations: | IR, IRN |
| IANA Time Zones: | 2 |
| Dial Code: | +98 |
Daylight Savings Time Schedule and Information
Before
22
:
59
After
00
:
00
21 MAR
21 Mar 1977 - Daylight Saving Time Starts
When local standard time is about to reach Monday, 21 March 1977, 22:59 clocks are turned forward 1 hour to
Monday, 21 March 1977, 00:00 local daylight time instead.
Sunrise and sunset will be about 1 hour later on 21 Mar 1977 than the day before. There will be more light in the evening.
Also called Spring Forward.
Daylight Savings Time Schedules by Provinces in Iran (1977)
| Province | DST Start (Spring) | DST End (Fall) |
|---|---|---|
| Alborz Province | 21 Mar 1977 | - |
| Ardabil Province | 21 Mar 1977 | - |
| Bushehr | 21 Mar 1977 | - |
| Chaharmahal and Bakhtiari | 21 Mar 1977 | - |
| East Azerbaijan | 21 Mar 1977 | - |
| Fars | 21 Mar 1977 | - |
| Gilan Province | 21 Mar 1977 | - |
| Golestan | 21 Mar 1977 | - |
| Hamadan Province | 21 Mar 1977 | - |
| Hormozgan | 21 Mar 1977 | - |
| Ilam Province | 21 Mar 1977 | - |
| Isfahan | 21 Mar 1977 | - |
| Kerman | 21 Mar 1977 | - |
| Kermanshah Province | 21 Mar 1977 | - |
| Khuzestan | 21 Mar 1977 | - |
| Kohgiluyeh and Boyer-Ahmad | 21 Mar 1977 | - |
| Kurdistan Province | 21 Mar 1977 | - |
| Lorestan Province | 21 Mar 1977 | - |
| Markazi | 21 Mar 1977 | - |
| Mฤzandarฤn | 21 Mar 1977 | - |
| North Khorasan | 21 Mar 1977 | - |
| Qazvin Province | 21 Mar 1977 | - |
| Qom Province | 21 Mar 1977 | - |
| Razavi Khorasan | 21 Mar 1977 | - |
| Semnan | 21 Mar 1977 | - |
| Sistan and Baluchestan | 21 Mar 1977 | - |
| South Khorasan Province | 21 Mar 1977 | - |
| Tehran | 21 Mar 1977 | - |
| West Azerbaijan | 21 Mar 1977 | - |
| Yazd Province | 21 Mar 1977 | - |
| Zanjan | 21 Mar 1977 | - |
DST Changes Summary for Iran
| Date | Year | Change | Time | Details |
|---|---|---|---|---|
| 21 Mar | 2022 | Forward 1 hour | 23:59 ➜ 01:00 | Daylight Saving Start |
| 21 Sep | 2022 | Back 1 hour | 23:59 ➜ 23:00 | Daylight Saving End |
Read More About Daylight Savings Time
Common Questions about Daylight Savings Time Changes in Iran
Does Iran use Daylight Saving Time in 1977?
Yes, Iran observes Daylight Saving Time during the 1977 calendar year. The country follows the practice of shifting clocks to better align waking hours with the available evening sunlight during the spring and summer months.
When do the clocks change next in Iran?
The next scheduled time transition in Iran will take place on Monday, 21 March 1977. At 22:59 local time, clocks will be turned forward by 1 hour. This specific change marks the transition to daylight saving time starts.
Does all of Iran follow the same time change schedule?
Yes, the calendar dates for starting and ending Daylight Saving Time are consistent across the country. However, because Iran spans 2 different time zones, the actual moment the clocks move occurs at different times depending on the local timezone of each province.
How will the next transition affect the day in Iran?
Following the shift on 21 Mar 1977, you will notice that there is more light in the evening compared to the day before. While the transition may temporarily disrupt sleep patterns, the primary goal of this forward shift is to maximize usable daylight for the population.