CentOS Errata and Enhancement Advisory 2015:1863 

Upstream details at : https://rhn.redhat.com/errata/RHEA-2015-1863.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( sha256sum Filename ) 

i386:
c9849a36e4b041658f626ddda0523574e8b5ccd19e777744d4257dc8947b8e29  tzdata-2015g-2.el6.noarch.rpm
659c9b6daca8804606cf246b800fed7321d0de88e61e4288ede85a12b6a0f03c  tzdata-java-2015g-2.el6.noarch.rpm

x86_64:
c9849a36e4b041658f626ddda0523574e8b5ccd19e777744d4257dc8947b8e29  tzdata-2015g-2.el6.noarch.rpm
659c9b6daca8804606cf246b800fed7321d0de88e61e4288ede85a12b6a0f03c  tzdata-java-2015g-2.el6.noarch.rpm

Source:
3abae3f896ffbfddf60eb19aad3302b16f1bd4084ac98d4fcd34857017e00aa1  tzdata-2015g-2.el6.src.rpm