Daylight Savings Time Changes in Iran ๐ฎ๐ท (1999)
| Country: | Iran |
| Capital: | Tehran |
| Abbreviations: | IR, IRN |
| IANA Time Zones: | 2 |
| Dial Code: | +98 |
Daylight Savings Time Schedule and Information
Before
23
:
59
After
01
:
00
21 MAR
21 Mar 1999 - Daylight Saving Time Starts
When local standard time is about to reach Sunday, 21 March 1999, 23:59 clocks are turned forward 1 hour to
Sunday, 21 March 1999, 01:00 local daylight time instead.
Sunrise and sunset will be about 1 hour later on 21 Mar 1999 than the day before. There will be more light in the evening.
Also called Spring Forward.
Before
23
:
59
After
23
:
00
21 SEP
21 Sep 1999 - Daylight Saving Time Ends
When local standard time is about to reach Tuesday, 21 September 1999, 23:59 clocks are turned backward 1 hour to
Tuesday, 21 September 1999, 23:00 local standard time instead.
Sunrise and sunset will be about 1 hour earlier on 21 Sep 1999 than the day before. There will be more light in the morning.
Also called Fall Back.
Daylight Savings Time Schedules by Provinces in Iran (1999)
| Province | DST Start (Spring) | DST End (Fall) |
|---|---|---|
| Alborz Province | 21 Mar 1999 | 21 Sep 1999 |
| Ardabil Province | 21 Mar 1999 | 21 Sep 1999 |
| Bushehr | 21 Mar 1999 | 21 Sep 1999 |
| Chaharmahal and Bakhtiari | 21 Mar 1999 | 21 Sep 1999 |
| East Azerbaijan | 21 Mar 1999 | 21 Sep 1999 |
| Fars | 21 Mar 1999 | 21 Sep 1999 |
| Gilan Province | 21 Mar 1999 | 21 Sep 1999 |
| Golestan | 21 Mar 1999 | 21 Sep 1999 |
| Hamadan Province | 21 Mar 1999 | 21 Sep 1999 |
| Hormozgan | 21 Mar 1999 | 21 Sep 1999 |
| Ilam Province | 21 Mar 1999 | 21 Sep 1999 |
| Isfahan | 21 Mar 1999 | 21 Sep 1999 |
| Kerman | 21 Mar 1999 | 21 Sep 1999 |
| Kermanshah Province | 21 Mar 1999 | 21 Sep 1999 |
| Khuzestan | 21 Mar 1999 | 21 Sep 1999 |
| Kohgiluyeh and Boyer-Ahmad | 21 Mar 1999 | 21 Sep 1999 |
| Kurdistan Province | 21 Mar 1999 | 21 Sep 1999 |
| Lorestan Province | 21 Mar 1999 | 21 Sep 1999 |
| Markazi | 21 Mar 1999 | 21 Sep 1999 |
| Mฤzandarฤn | 21 Mar 1999 | 21 Sep 1999 |
| North Khorasan | 21 Mar 1999 | 21 Sep 1999 |
| Qazvin Province | 21 Mar 1999 | 21 Sep 1999 |
| Qom Province | 21 Mar 1999 | 21 Sep 1999 |
| Razavi Khorasan | 21 Mar 1999 | 21 Sep 1999 |
| Semnan | 21 Mar 1999 | 21 Sep 1999 |
| Sistan and Baluchestan | 21 Mar 1999 | 21 Sep 1999 |
| South Khorasan Province | 21 Mar 1999 | 21 Sep 1999 |
| Tehran | 21 Mar 1999 | 21 Sep 1999 |
| West Azerbaijan | 21 Mar 1999 | 21 Sep 1999 |
| Yazd Province | 21 Mar 1999 | 21 Sep 1999 |
| Zanjan | 21 Mar 1999 | 21 Sep 1999 |
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 1999?
Yes, Iran observes Daylight Saving Time during the 1999 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 Sunday, 21 March 1999. At 23:59 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 1999, 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.