WTF? 9.2.4 Logs have the wrong day of the week?

Everything you need to see is right here:

[root@<serverNameRemoved> pg_log]# ls -lrt
total 5924

-rw------- 1 postgres postgres 708669 Aug 8 18:59 postgresql-Thu.log
-rw------- 1 postgres postgres 669505 Aug 9 18:59 postgresql-Fri.log
-rw------- 1 postgres postgres 666603 Aug 10 18:56 postgresql-Sat.log
-rw------- 1 postgres postgres 559716 Aug 11 18:59 postgresql-Sun.log
-rw------- 1 postgres postgres 626143 Aug 12 18:56 postgresql-Mon.log
-rw------- 1 postgres postgres 2065282 Aug 13 18:24 postgresql-Tue.log
-rw------- 1 postgres postgres 755099 Aug 13 19:22 postgresql-Wed.log

[root@<serverNameRemoved> pg_log]# date
Tue Aug 13 19:23:53 CDT 2013

so...yah..anyone?

For further information, please see:
http://www.dayoftheweek.org/?m=August&d=13&y=2013&go=Go

It's the "Wed" part that is confusing me...