Last change: 2022
Sep
22
1 hour
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Sep 22, 2022, 12:00 midnight
| No further time changes in 1990 in 29°51'29.2"N, 60°50'40.0"E |
Daylight Saving Time (DST) Not Observed in Year 1990
Iran observed Iran Standard Time (IRST) all year.
DST was not in use in 1990.
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) |
|---|---|---|
| 1990 | DST not observed | |
| 1991 | Friday, May 3, 12:00 midnight | Sunday, September 22, 12:00 midnight |
| 1992 | Sunday, March 22, 12:00 midnight | Tuesday, September 22, 12:00 midnight |
| 1993 | Monday, March 22, 12:00 midnight | Wednesday, September 22, 12:00 midnight |
| 1994 | Tuesday, March 22, 12:00 midnight | Thursday, September 22, 12:00 midnight |
| 1995 | Wednesday, March 22, 12:00 midnight | Friday, September 22, 12:00 midnight |
| 1996 | Thursday, March 21, 12:00 midnight | Saturday, September 21, 12:00 midnight |
| 1997 | Saturday, March 22, 12:00 midnight | Monday, September 22, 12:00 midnight |
| 1998 | Sunday, March 22, 12:00 midnight | Tuesday, September 22, 12:00 midnight |
| 1999 | Monday, March 22, 12:00 midnight | Wednesday, September 22, 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