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109 W. Madison Mt. Ayr, IA 50854 View Location

Feb 25

Daylight Savings Time Begins March 8


Daylight Savings Time in the United States is synchronized. By law, all areas taking part in the DST switch must do so on the same dates and at the same local time. All clock changes occur at 02:00 (2 am). In the spring, clocks are set forward to 03:00 (3 am); in the fall, they are turned backward to 01:00 (1 am).  However, since the United States spans several time zones, the clock changes, while occurring at the same local time in each time zone, do not happen simultaneously. Eastern time zones switch earlier than western time zones. For example, each DST change happens 3 hours earlier in New York than in Los Angeles.


In 1942, at the height of World War II, President Franklin D. Roosevelt reintroduced the measure, instituting year-round Daylight Savings Time in the United States. Referred to as “War Time”, DST was in force continuously from February 9, 1942, to September 30, 1945.  During this time, the US time zones were called “Eastern War Time”, “Mountain War Time”, “Central War Time”, and “Pacific War Time”. After the surrender of Japan in mid-August 1945, the time zones were relabeled “Peace Time”.

