[exim] QT=xx DT=yy strangeness

Happy New Year,

I've the problem to understand the following log entries

2009-01-09 17:07:39 1LLJmD-0005RX-VI <= xxxx@??? U=xxxx P=local S=6074 T="Cron <xxxx@bronto> /usr/local/sbin/Backup" from <xxxx@???> for xxxx
2009-01-09 17:07:40 1LLJmD-0005RX-VI => xxxxxx@??? <xxxx@???> F=<xxxx@???> R=manual T=smtp S=6224 H=mail.tu-berlin.de [130.149.7.33] X=TLSv1:AES256-SHA:256 C="250 OK id=1LLJtc-0001KX-9x" QT=7m39s DT=0s
2009-01-09 17:07:40 1LLJmD-0005RX-VI Completed QT=7m39s

QT=7m39s DT=0s from 17:07:39 17:07:40 ?
^^^^^


--Frank Elsner