### CONTEXT (Previous Events):
<system_output timestamp="680.345666">Setting up libaio1:i386 (0.3.113-4) ...
</system_output>
<system_output timestamp="680.346651">Setting up libc-dev-bin (2.36-9+deb12u8) ...
Setting up openssl (3.0.14-1~deb12u1) ...
</system_output>
<system_output timestamp="680.349817">Setting up libxml2:i386 (2.9.14+dfsg-1.3~deb12u1) ...
</system_output>
<system_output timestamp="680.350742">Setting up libnvme1 (1.3-1+deb12u1) ...
</system_output>
<system_output timestamp="680.353223">Setting up mdadm (4.2-5) ...
</system_output>
<system_output timestamp="680.57231">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="680.620409">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="680.673885">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="680.680281">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="680.916433">Created symlink /etc/systemd/system/sysinit.target.wants/mdadm-shutdown.service -&gt; /lib/systemd/system/mdadm-shutdown.service.

</system_output>
<system_output timestamp="680.949504">Setting up libitm1:i386 (12.2.0-14) ...
</system_output>
<system_output timestamp="680.951175">Setting up rsync (3.2.7-1) ...
</system_output>
<system_output timestamp="680.98949">invoke-rc.d: could not determine current runlevel
</system_output>
<system_output timestamp="680.996136">invoke-rc.d: policy-rc.d denied execution of start.
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="681.153591">Setting up libudns0:i386 (0.4-1+b1) ...
</system_output>

Answer: 681.153591, old event