Flag for Iran Clock changes in Tehran, Iran in 2012

Next change:
Sep
22
1 hour Back

Sep 22, 2014, 12:00 Midnight

Start DST: Wednesday, March 21, 2012
 1 hour forward

End DST: Thursday, September 20, 2012
 1 hour backward

Location of TehranLocation

Mar 21

Forward 1 hour

Mar 21, 2012 - Daylight Saving Time Started

When local standard time was about to reach
Wednesday, March 21, 2012, 12:00:00 Midnight clocks were turned forward 1 hour to
Wednesday, March 21, 2012, 1:00:00 AM local daylight time instead

Sunrise and sunset was about 1 hour later on Mar 21, 2012 than the day before. There was more light in the evening.

Also called Spring Forward, summer time, and Daylight Savings Time.

Sep 20

Back 1 hour

Sep 20, 2012 - Daylight Saving Time Ended

When local daylight time was about to reach
Friday, September 21, 2012, 12:00:00 Midnight clocks were turned backward 1 hour to
Thursday, September 20, 2012, 11:00:00 PM local standard time instead

Sunrise and sunset was about 1 hour earlier on Sep 20, 2012 than the day before. There was more light in the morning.

Also called Fall Back and winter time.

Other years: 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015

Daylight Saving Time in other years

DST changes do not necessarily occur on the same date every year.

YearDST Start (Clock forward)DST End (Clock backward)
2010Monday, March 22, 12:00 MidnightWednesday, September 22, 12:00 Midnight
2011Tuesday, March 22, 12:00 MidnightThursday, September 22, 12:00 Midnight
2012Wednesday, March 21, 12:00 MidnightFriday, September 21, 12:00 Midnight
2013Friday, March 22, 12:00 MidnightSunday, September 22, 12:00 Midnight
2014Saturday, March 22, 12:00 MidnightMonday, September 22, 12:00 Midnight
2015Sunday, March 22, 12:00 MidnightTuesday, September 22, 12:00 Midnight
2016Monday, March 21, 12:00 MidnightWednesday, September 21, 12:00 Midnight
2017Wednesday, March 22, 12:00 MidnightFriday, September 22, 12:00 Midnight
2018Thursday, March 22, 12:00 MidnightSaturday, September 22, 12:00 Midnight
2019Friday, March 22, 12:00 MidnightSunday, September 22, 12:00 Midnight
* All times are local for Tehran, current year is highlighted.

Detailed time zone and clock changes in Tehran

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Daylight Saving Time Info