### CONTEXT (Previous Events):
<system_output timestamp="1537.671762">I: Unpacking libtirpc-common...
</system_output>
<system_output timestamp="1537.86798">I: Unpacking libtirpc3:i386...
</system_output>
<system_output timestamp="1538.067669">I: Unpacking libxapian30:i386...
</system_output>
<system_output timestamp="1538.451819">I: Unpacking libxtables12:i386...
</system_output>
<system_output timestamp="1538.727528">I: Unpacking logrotate...
</system_output>
<system_output timestamp="1538.971391">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1539.172496">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1539.406643">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1539.861222">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1540.020504">I: Unpacking sensible-utils...
</system_output>
<system_output timestamp="1540.210083">I: Unpacking tasksel...
</system_output>
<system_output timestamp="1540.385019">I: Unpacking tasksel-data...
</system_output>
<system_output timestamp="1540.611969">I: Unpacking udev...
</system_output>
<system_output timestamp="1541.175483">I: Unpacking vim-common...
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="1541.421833">I: Unpacking vim-tiny...
</system_output>

Answer: 1541.421833, old event