This DisplayString field records the wall-clock timestamp at which this measurement bin began collecting data. Because this is today's still-open 24-hour PM window, which keeps growing through the day and resets only when the daily boundary rolls over, this timestamp is what you anchor every counter in the same row to — without it you cannot tell whether a spike in the traffic counters happened this morning or three intervals ago. For example, if this field reads '2026-08-07 14:00:00' for today's still-running 24-hour bin, that tells you it started at 2pm, so any alarm correlated to a 2:05pm outage should be read against this row rather than an adjacent one.