### CONTEXT (Previous Events):
<system_output timestamp="8600.744996">Reading package lists...
</system_output>
<system_output timestamp="8600.990176">Building dependency tree...
</system_output>
<system_output timestamp="8600.991594">Reading state information...
</system_output>
<system_output timestamp="8601.17896">Reading extended state information...
</system_output>
<system_output timestamp="8601.196089">Initializing package states...
</system_output>
<system_output timestamp="8601.799252">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="8602.052359">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="8602.530876">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="8602.57975">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="8602.583918">Fetched 314 kB in 0s (17.7 MB/s)
</system_output>
<system_output timestamp="8602.622827">install_packages: executing  aptitude -R -d -o Aptitude::Log=/dev/null -o Aptitude::CmdLine::Ignore-Trust-Violations=yes -o APT::Get::AllowUnauthenticated=true -o Acquire::AllowInsecureRepositories=true -o DPkg::force-conflicts::=yes -o Dir::State=/usr/fai/mirror/aptcache/var/lib/apt -o Dir::Log=/usr/fai/mirror/aptcache/var/log/apt -o Dir::State::extended_states=/usr/fai/mirror/aptcache/var/lib/apt/lists/extended_states -o Dir::State::status=/usr/fai/mirror/aptcache/statefile -o Dir::Cache=/usr/fai/mirror/aptcache/var/cache/apt -o Dir::State=/usr/fai/mirror/aptcache/var/cache/apt -o Dir::Cache::Archives=/usr/fai/mirror/aptcache/var/cache/apt/archives -o Dir::Etc=/usr/fai/mirror/aptcache/etc/apt/ -o Dir::State::Lists=/usr/fai/mirror/aptcache/var/lib/apt/lists/ -y install gdb
</system_output>
<system_output timestamp="8602.670235">Reading package lists...
</system_output>
<system_output timestamp="8602.922857">Building dependency tree...
</system_output>
<system_output timestamp="8602.923994">Reading state information...
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="8603.124027">Reading extended state information...
</system_output>

Answer: 8603.124027, old event