Created attachment 348194 [details, diff] patch for timezone-data-2013b.ebuild, also fits for 2013c /etc/localtime is being overwritten by every update of timezone-data (2013b,c and earlier). patch follows.
ups - my /etc/timezone does not conform to the (current?) Gentoo manual: I have as contents TIMEZONE=Europe/Berlin though equal signs normally don't appear in file names and it could be cut off anyways... TIA
/etc/conf.d/clock is where you do something like: TIMEZONE=aslkdjf /etc/timezone does not take the var form. it is just: aslkdjf if you're putting "TIMEZONE=aslkdjf" into /etc/timezone, then your system is misconfigured