Sep 22, 2022, 12:00 midnight
| Start DST: | Wednesday, March 21, 2012 — 1 hour forward |
|---|---|
| End DST: | Thursday, September 20, 2012 — 1 hour backward |
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 were 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 21
Back 1 hour
Sep 21, 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 were about 1 hour earlier on Sep 21, 2012 than the day before. There was more light in the morning.
Also called Fall Back and Winter Time.
Daylight Saving Time in Other Years
DST changes do not necessarily occur on the same date every year.
| Year | DST Start (Clock Forward) | DST End (Clock Backward) |
|---|---|---|
| 2010 | Monday, March 22, 12:00 midnight | Wednesday, September 22, 12:00 midnight |
| 2011 | Tuesday, March 22, 12:00 midnight | Thursday, September 22, 12:00 midnight |
| 2012 | Wednesday, March 21, 12:00 midnight | Friday, September 21, 12:00 midnight |
| 2013 | Friday, March 22, 12:00 midnight | Sunday, September 22, 12:00 midnight |
| 2014 | Saturday, March 22, 12:00 midnight | Monday, September 22, 12:00 midnight |
| 2015 | Sunday, March 22, 12:00 midnight | Tuesday, September 22, 12:00 midnight |
| 2016 | Monday, March 21, 12:00 midnight | Wednesday, September 21, 12:00 midnight |
| 2017 | Wednesday, March 22, 12:00 midnight | Friday, September 22, 12:00 midnight |
| 2018 | Thursday, March 22, 12:00 midnight | Saturday, September 22, 12:00 midnight |
| 2019 | Friday, March 22, 12:00 midnight | Sunday, September 22, 12:00 midnight |
| All times are local for Tehran. | ||