Daylight saving time in Iran

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Daylight saving time in Iran was the practice of setting the clock forward by one hour between the first day of Farvardin (21–22 March) in the Iranian calendar and the last day of Shahrivar (21–22 September), which has been observed during years 1978–1980, 1991–2005, and 2008–2023.[1]

World map. Europe, most of North America, parts of southern South America and southeastern Australia, and a few other places use DST. Most of equatorial Africa and a few other places near the equator have never used DST as the seasons are not marked by drastic changes in light. The rest of the landmass is marked as formerly using DST.
Daylight saving time regions:
  Northern hemisphere summer
  Southern hemisphere summer
  Formerly used daylight saving time
  Never used daylight saving time

Abolishment

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In 2006, Iran abolished daylight saving time (DST);[2] however, in September 2007, the Iranian Parliament passed a law restoring DST starting from March 21, 2008, in spite of opposition by the contemporary government.[3]

A number of deputies of the eleventh term of the Parliament drafted a plan to abolish daylight saving time in the country. The plan was approved by the Parliament on March 15, 2022. However, it was rejected by the Guardian Council due to it not clearly determining when this rule must be applied, and not clarifying if the Iranian government had authority to change it or not. After solving these ambiguities, it was confirmed to the Guardian Council, and then this plan was communicated to all ministries, organizations, and institutions by Iranian President Ebrahim Raisi on May 22, 2022. The abolition of daytime saving time was planned to be implemented on March 21, 2023.

However on September 21, 2022, Iran abolished daylight saving time effective immediately and now observes standard time year-round.[4][5]

Restore

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In May 2025, the Iranian regime partially restored daylight savings time in Tehran, despite opposition from the Parliament.[6]

See also

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References

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  1. ^ "Time Zone & Clock Changes in Tehran, Iran". timeanddate.com. Retrieved 13 May 2022.
  2. ^ "Elham: Cabinet nullifies the decision on daylight saving time". Islamic Republic News Agency. 19 March 2006. Archived from the original on 13 June 2006.
  3. ^ "Iran body backs reverting to daylight saving time". Reuters. 16 September 2007. Archived from the original on 19 January 2022. Retrieved 13 May 2022.
  4. ^ "Iran Considers Abolishing DST". timeanddate.com. Retrieved 13 May 2022.
  5. ^ "Daylight Saving Time Ends in Iran". Livingintehran.com. 2022-09-21.
  6. ^ "تغییر ساعت کاری ادارات استان تهران و تعطیلی پنج‌شنبه‌ها". اعتمادآنلاین (in Persian). Archived from the original on 2025-05-11. Retrieved 2025-07-26.