### CONTEXT (Previous Events):
<system_output timestamp="620.694743">Reading package lists...
</system_output>
<system_output timestamp="620.949572">Building dependency tree...
</system_output>
<system_output timestamp="620.952548">Reading state information...
</system_output>
<system_output timestamp="621.153973">Reading extended state information...
</system_output>
<system_output timestamp="621.174759">Initializing package states...
</system_output>
<system_output timestamp="621.981024">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="622.240565">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="622.761034">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="622.841479">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="622.896977">Reading package lists...
</system_output>
<system_output timestamp="623.1522">Building dependency tree...
</system_output>
<system_output timestamp="623.155131">Reading state information...
</system_output>
<system_output timestamp="623.357259">Reading extended state information...
</system_output>
<system_output timestamp="623.379247">Initializing package states...
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="623.892254">Writing extended state information...
</system_output>

Answer: 623.892254, old event