Last change: 2022
Sep
22
1 hour Back
Sep 22, 2022, 12:00 midnight
| No further time changes in 1981 in 29°51'29.2"N, 60°50'40.0"E |

Daylight Saving Time (DST) Not Observed in Year 1981
Iran observed Iran Standard Time (IRST) all year.
DST was not in use in 1981.
The previous DST change in 29°51'29.2"N, 60°50'40.0"E, Iran was on September 22, 1980.
Try selecting a different year below.
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) |
|---|---|---|
| 1980 | Friday, March 21, 12:00 midnight | Tuesday, September 23, 12:00 midnight |
| 1981 — 1989 | DST not observed | |
| 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