Flag for Iran Clock Changes in Tehran, Iran in 2009

Next change:
Mar
22
1 hour Forward

Mar 22, 2017, 12:00 midnight

Start DST: Sunday, March 22, 2009
 1 hour forward

End DST: Monday, September 21, 2009
 1 hour backward

Location of TehranLocation

Mar 22

Forward 1 hour

Mar 22, 2009 - Daylight Saving Time Started

When local standard time was about to reach
Sunday, March 22, 2009, 12:00:00 midnight clocks were turned forward 1 hour to
Sunday, March 22, 2009, 1:00:00 am local daylight time instead

Sunrise and sunset was about 1 hour later on Mar 22, 2009 than the day before. There was more light in the evening.

Also called Spring Forward, Summer Time, and Daylight Savings Time.

Sep 22

Back 1 hour

Sep 22, 2009 - Daylight Saving Time Ended

When local daylight time was about to reach
Tuesday, September 22, 2009, 12:00:00 midnight clocks were turned backward 1 hour to
Monday, September 21, 2009, 11:00:00 pm local standard time instead

Sunrise and sunset was about 1 hour earlier on Sep 22, 2009 than the day before. There was more light in the morning.

Also called Fall Back and Winter Time.

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Other years: 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012

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)
2000Tuesday, March 21, 12:00 midnightThursday, September 21, 12:00 midnight
2001Thursday, March 22, 12:00 midnightSaturday, September 22, 12:00 midnight
2002Friday, March 22, 12:00 midnightSunday, September 22, 12:00 midnight
2003Saturday, March 22, 12:00 midnightMonday, September 22, 12:00 midnight
2004Sunday, March 21, 12:00 midnightTuesday, September 21, 12:00 midnight
2005Tuesday, March 22, 12:00 midnightThursday, September 22, 12:00 midnight
2006 — 2007DST not observed
2008Friday, March 21, 12:00 midnightSunday, September 21, 12:00 midnight
2009Sunday, March 22, 12:00 midnightTuesday, September 22, 12:00 midnight
All times are local for Tehran.

Detailed time zone and clock changes in Tehran