| Year | Start Date | End Date |
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| 1950 | Sunday, April 30 at 2:00 AM | Sunday, September 24 at 2:00 AM | | 1951 | Sunday, April 29 at 2:00 AM | Sunday, September 30 at 2:00 AM | | 1952 | Sunday, April 27 at 2:00 AM | Sunday, September 28 at 2:00 AM | | 1953 | Sunday, April 26 at 2:00 AM | Sunday, September 27 at 2:00 AM | | 1954 | Sunday, April 25 at 2:00 AM | Sunday, September 26 at 2:00 AM | | 1955 | Sunday, April 24 at 2:00 AM | Sunday, October 30 at 2:00 AM | | 1956 | Sunday, April 29 at 2:00 AM | Sunday, October 28 at 2:00 AM | | 1957 | Sunday, April 28 at 2:00 AM | Sunday, October 27 at 2:00 AM | | 1958 | Sunday, April 27 at 2:00 AM | Sunday, October 26 at 2:00 AM | | 1959 | Sunday, April 26 at 2:00 AM | Sunday, October 25 at 2:00 AM |
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Details of each time changeFor each change, two lines are displayed: line #1 is the time and time zone one second before the change line #2 is the time and time zone when the change itself | Local Date | Local Time | DST | UTC Offset | Time Zone | Event/details |
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| Sunday, April 30, 1950 | 1:59:59 AM | No | UTC-5h | EST | | | 2:00:00 AM → 3:00:00 AM | +1h | UTC-4h | EDT | DST starts | | Sunday, September 24, 1950 | 1:59:59 AM | +1h | UTC-4h | EDT | | | 2:00:00 AM → 1:00:00 AM | No | UTC-5h | EST | DST ends | | Sunday, April 29, 1951 | 1:59:59 AM | No | UTC-5h | EST | | | 2:00:00 AM → 3:00:00 AM | +1h | UTC-4h | EDT | DST starts | | Sunday, September 30, 1951 | 1:59:59 AM | +1h | UTC-4h | EDT | | | 2:00:00 AM → 1:00:00 AM | No | UTC-5h | EST | DST ends | | Sunday, April 27, 1952 | 1:59:59 AM | No | UTC-5h | EST | | | 2:00:00 AM → 3:00:00 AM | +1h | UTC-4h | EDT | DST starts | | Sunday, September 28, 1952 | 1:59:59 AM | +1h | UTC-4h | EDT | | | 2:00:00 AM → 1:00:00 AM | No | UTC-5h | EST | DST ends | | Sunday, April 26, 1953 | 1:59:59 AM | No | UTC-5h | EST | | | 2:00:00 AM → 3:00:00 AM | +1h | UTC-4h | EDT | DST starts | | Sunday, September 27, 1953 | 1:59:59 AM | +1h | UTC-4h | EDT | | | 2:00:00 AM → 1:00:00 AM | No | UTC-5h | EST | DST ends | | Sunday, April 25, 1954 | 1:59:59 AM | No | UTC-5h | EST | | | 2:00:00 AM → 3:00:00 AM | +1h | UTC-4h | EDT | DST starts | | Sunday, September 26, 1954 | 1:59:59 AM | +1h | UTC-4h | EDT | | | 2:00:00 AM → 1:00:00 AM | No | UTC-5h | EST | DST ends | | Sunday, April 24, 1955 | 1:59:59 AM | No | UTC-5h | EST | | | 2:00:00 AM → 3:00:00 AM | +1h | UTC-4h | EDT | DST starts | | Sunday, October 30, 1955 | 1:59:59 AM | +1h | UTC-4h | EDT | | | 2:00:00 AM → 1:00:00 AM | No | UTC-5h | EST | DST ends | | Sunday, April 29, 1956 | 1:59:59 AM | No | UTC-5h | EST | | | 2:00:00 AM → 3:00:00 AM | +1h | UTC-4h | EDT | DST starts | | Sunday, October 28, 1956 | 1:59:59 AM | +1h | UTC-4h | EDT | | | 2:00:00 AM → 1:00:00 AM | No | UTC-5h | EST | DST ends | | Sunday, April 28, 1957 | 1:59:59 AM | No | UTC-5h | EST | | | 2:00:00 AM → 3:00:00 AM | +1h | UTC-4h | EDT | DST starts | | Sunday, October 27, 1957 | 1:59:59 AM | +1h | UTC-4h | EDT | | | 2:00:00 AM → 1:00:00 AM | No | UTC-5h | EST | DST ends | | Sunday, April 27, 1958 | 1:59:59 AM | No | UTC-5h | EST | | | 2:00:00 AM → 3:00:00 AM | +1h | UTC-4h | EDT | DST starts | | Sunday, October 26, 1958 | 1:59:59 AM | +1h | UTC-4h | EDT | | | 2:00:00 AM → 1:00:00 AM | No | UTC-5h | EST | DST ends | | Sunday, April 26, 1959 | 1:59:59 AM | No | UTC-5h | EST | | | 2:00:00 AM → 3:00:00 AM | +1h | UTC-4h | EDT | DST starts | | Sunday, October 25, 1959 | 1:59:59 AM | +1h | UTC-4h | EDT | | | 2:00:00 AM → 1:00:00 AM | No | UTC-5h | EST | DST ends |
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