Sep 22, 2022, 12:00 midnight
| Start DST: | Saturday, May 26, 1979 — 1 hour forward |
|---|---|
| End DST: | Tuesday, September 18, 1979 — 1 hour backward |
May 26
Forward 1 hour
May 26, 1979 - Daylight Saving Time Started
When local standard time was about to reach
Saturday, May 26, 1979, 12:00:00 midnight clocks were turned forward 1 hour to
Saturday, May 26, 1979, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on May 26, 1979 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.
Sep 19
Back 1 hour
Sep 19, 1979 - Daylight Saving Time Ended
When local daylight time was about to reach
Wednesday, September 19, 1979, 12:00:00 midnight clocks were turned backward 1 hour to
Tuesday, September 18, 1979, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on Sep 19, 1979 than the day before. There was more light in the morning and less light in the evening.
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) |
|---|---|---|
| 1970 — 1976 | DST not observed | |
| 1977 | Monday, March 21, 11:00 pm | Friday, October 21, 12:00 midnight |
| 1978 | Saturday, March 25, 12:00 midnight | Saturday, August 5, 1:00 am |
| 1979 | Saturday, May 26, 12:00 midnight | Wednesday, September 19, 12:00 midnight |
| All times are local for 29°51'29.2"N, 60°50'40.0"E. | ||
Data for the years before 1970 is not available for 29°51'29.2"N, 60°50'40.0"E, however, we have earlier time zone history for Tehran available.
Detailed time zone and clock changes in 29°51'29.2"N, 60°50'40.0"E