### CONTEXT (Previous Events):
<system_output timestamp="255.626624">Selecting previously unselected package librtmp1:i386.
</system_output>
<system_output timestamp="255.629169">Preparing to unpack .../022-librtmp1_2.4+20151223.gitfa8646d.1-2+b2_i386.deb ...
Unpacking librtmp1:i386 (2.4+20151223.gitfa8646d.1-2+b2) ...
</system_output>
<system_output timestamp="255.671525">Selecting previously unselected package libssh2-1:i386.
</system_output>
<system_output timestamp="255.674181">Preparing to unpack .../023-libssh2-1_1.10.0-3+b1_i386.deb ...
</system_output>
<system_output timestamp="255.675807">Unpacking libssh2-1:i386 (1.10.0-3+b1) ...
</system_output>
<system_output timestamp="255.728435">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="255.731295">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="255.73177">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="255.865441">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="255.867579">Preparing to unpack .../025-curl_7.88.1-10+deb12u7_i386.deb ...
</system_output>
<system_output timestamp="255.868085">Unpacking curl (7.88.1-10+deb12u7) ...
</system_output>
<system_output timestamp="255.955097">Selecting previously unselected package dialog.
</system_output>
<system_output timestamp="255.955233">Preparing to unpack .../026-dialog_1.3-20230209-1_i386.deb ...
</system_output>
<system_output timestamp="255.956241">Unpacking dialog (1.3-20230209-1) ...
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="256.257233">Selecting previously unselected package libusb-1.0-0:i386.
Preparing to unpack .../027-libusb-1.0-0_2%3a1.0.26-1_i386.deb ...
Unpacking libusb-1.0-0:i386 (2:1.0.26-1) ...
</system_output>

Answer: 256.257233, old event