This notification-only value carried in every packet-mirroring trap records the exact time the event occurred, using the standard DateAndTime convention. An admin uses this timestamp to build an accurate timeline of mirroring session events, especially important for lawful-intercept auditing where precise event timing is a compliance requirement. For example, comparing juniPacketMirrorDateAndTime across a session's start and end traps establishes the exact duration that subscriber's traffic was being mirrored.