Daylight Savings Time Changes in Iran ๐Ÿ‡ฎ๐Ÿ‡ท (1991)

Next change:
MAY
2
1 hour Forward
02 May 1991, 23:59
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
2 MAY

02 May 1991 - Daylight Saving Time Starts

When local standard time is about to reach Thursday, 02 May 1991, 23:59 clocks are turned forward 1 hour to
Thursday, 02 May 1991, 01:00 local daylight time instead.

Sunrise and sunset will be about 1 hour later on 02 May 1991 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 1991 - Daylight Saving Time Ends

When local standard time is about to reach Saturday, 21 September 1991, 23:59 clocks are turned backward 1 hour to
Saturday, 21 September 1991, 23:00 local standard time instead.

Sunrise and sunset will be about 1 hour earlier on 21 Sep 1991 than the day before. There will be more light in the morning.

Also called Fall Back.

Daylight Savings Time Schedules by Provinces in Iran (1991)

ProvinceDST Start (Spring)DST End (Fall)
Alborz Province 02 May 1991 21 Sep 1991
Ardabil Province 02 May 1991 21 Sep 1991
Bushehr 02 May 1991 21 Sep 1991
Chaharmahal and Bakhtiari 02 May 1991 21 Sep 1991
East Azerbaijan 02 May 1991 21 Sep 1991
Fars 02 May 1991 21 Sep 1991
Gilan Province 02 May 1991 21 Sep 1991
Golestan 02 May 1991 21 Sep 1991
Hamadan Province 02 May 1991 21 Sep 1991
Hormozgan 02 May 1991 21 Sep 1991
Ilam Province 02 May 1991 21 Sep 1991
Isfahan 02 May 1991 21 Sep 1991
Kerman 02 May 1991 21 Sep 1991
Kermanshah Province 02 May 1991 21 Sep 1991
Khuzestan 02 May 1991 21 Sep 1991
Kohgiluyeh and Boyer-Ahmad 02 May 1991 21 Sep 1991
Kurdistan Province 02 May 1991 21 Sep 1991
Lorestan Province 02 May 1991 21 Sep 1991
Markazi 02 May 1991 21 Sep 1991
Mฤzandarฤn 02 May 1991 21 Sep 1991
North Khorasan 02 May 1991 21 Sep 1991
Qazvin Province 02 May 1991 21 Sep 1991
Qom Province 02 May 1991 21 Sep 1991
Razavi Khorasan 02 May 1991 21 Sep 1991
Semnan 02 May 1991 21 Sep 1991
Sistan and Baluchestan 02 May 1991 21 Sep 1991
South Khorasan Province 02 May 1991 21 Sep 1991
Tehran 02 May 1991 21 Sep 1991
West Azerbaijan 02 May 1991 21 Sep 1991
Yazd Province 02 May 1991 21 Sep 1991
Zanjan 02 May 1991 21 Sep 1991

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 1991?

Yes, Iran observes Daylight Saving Time during the 1991 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 Thursday, 02 May 1991. 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 02 May 1991, 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.

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