September 27-2013
It’s that time of year again—watch juggling time. On Monday, Iran moved its clocks backward an hour, so there is
one hour less in difference with the United States for the next six weeks.
The time laws are as follows: Iran is on Daylight Saving Time for the first six months of the Persian year; the United States is on Daylight Saving Time from the second Sunday in March to the first Sunday in November.
The result of all this is that Iran is normally 8-1/2 hours ahead of the American East Coast, but is 7-1/2 hours ahead for seven or eight weeks a year. Here’s a table to tape to your telephone or refrigerator with the dates for this year.
Iran-U.S. Time Conversion
From: Iran is:
March 21 thru Sept 22……………………………8-1/2 hrs ahead
Sept 23 thru Nov 2………………………………….7-1/2 hrs ahead
Nov 3 thru March 9……………………………….8-1/2 hrs ahead
March 10 thru March 20………………………….7-1/2 hrs ahead
US Exceptions: Arizona (except for the Navajo Nation), Hawaii, Guam, American Samoa, Puerto Rico and the Virgin Islands do not go on summer time.
Canada: The time laws are set by the provinces, which follow the US formula above—except for much of Saskatchewan and small bits of Quebec, Ontario, British Columbia and Nunavut, which don’t advance their clocks in the summer.
Memory aid: How do you remember whether to add or subtract an hour? There’s a common English language memory jog: Spring forward; fall backward.
Time zones: If you live in the Central Time Zone, add an hour to the right hand column; for the Mountain Time Zone, add two hours; and for the Pacific Time Zone, add three hours. For the Atlantic Time Zone (Puerto Rico and Canada’s Maritime provinces) subtract one hour. If you’re in Newfoundland or Alaska, you’re on your own.