Hi, I also can't get custom timestamp working in 3.4.5. I have configured: logformat custom %{%Y-%m-%d %H:%M:%S}tl %6tr %>a %Ss/%03>Hs %<st %rm %ru %[un %Sh/%<a %mt cache_access_log /opt/squid-test/var/logs/access.log custom And it still outputs the default timestamp format which is %Y/%m/%d:%H:%M:%S %z. I don't know if it worked in 3.4.4 but I'm sure it worked in squid 2.7. -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/logformat-and-timestamp-in-3-4-5-tp4665970p4666131.html Sent from the Squid - Users mailing list archive at Nabble.com.