GMTTimeStamp
The value at which a specific occurrence happened. The specific occurrence must be defined in the description of any object defined using this type. field octets contents range ----- ------ -------- ----- 1 1-4 second since 1 Jan 2000 0H00* 0..2^31 - 1 2 5-8 fractional part of the second* 0..2^32 - 1 * the value is in network-byte order The timestamp format is directly inspired from the NTP timestamp format. It differs because it counts the second since 1 Jan 2000 0H00 instead of 1 Jan 1900 0H00. The most significant bit of the part that represents the second is reserved. It will wrap in year 2068 (The NTP timestamp will wrap in year 2036). This bit is set to indicate if the fractional part of the second contains a precision field and a synchronization field. When this bit is not set the resolution is maximal. The maximal resolution is close to 250 picoseconds. The precision of the timestamp is provided in etsysSrvcLvlSystemClockResolution.