In 61850-7-2 Edition 1 the definition of TimeStamp.SecondSinceEpoch is an INT32, which represents seconds since 1/1/1970. This will overflow in 2038, at which time equipment now being developed will be in use.
The Timestamp type in IEC 61850-7-2 Edition 2 is INT32U. The timestamp will not overflow until 2106.
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