Time period to report on. The script will only gather the events in this period, which means that it may capture partial ...

Time period to report on.  The script will only gather the events in this period, which means that it may capture partial operation records (just the end of an operation at the start of the period, vice-versa at the end). If neither value is specified, the script defaults to the past 24 hours. If only one value is specified (either StartTime or EndTime), the period will be 24 hours either beginning or ending at the specified time.