Sep 22, 2022, 12:00 midnight
Mar 21
Forward 1 hour
Mar 21, 1978 - Daylight Saving Time Started
When local standard time was about to reach
Tuesday, March 21, 1978, 12:00:00 midnight clocks were turned forward 1 hour to
Tuesday, March 21, 1978, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Mar 21, 1978 than the day before. There was more light in the evening and less light in the morning.
Also called Spring Forward, Summer Time, and Daylight Savings Time.
Oct 21
Back 1 hour
Oct 21, 1978 - Daylight Saving Time Ended
When local daylight time was about to reach
Saturday, October 21, 1978, 12:00:00 midnight clocks were turned backward 1 hour to
Friday, October 20, 1978, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on Oct 21, 1978 than the day before. There was more light in the morning and less light in the evening.
Also called Fall Back and Winter Time.
Jan 1
Back 0:30 hours
Jan 1, 1979 - Time Zone Change (IRST → IRST)
When local standard time was about to reach
Monday, January 1, 1979, 12:00:00 midnight clocks were turned backward 0:30 hours to
Sunday, December 31, 1978, 11:30:00 pm local standard time instead.
Daylight Saving Time History in Iran
- Iran last observed Daylight Saving Time in 2022.
- Iran has observed DST for 33 years between 1978 and 2022.
- See Worldwide DST Statistics