Packages with the timezone use flag

dev-python / geopy : A Geocoding Toolbox for Python

  • Enables localized date support

media-gfx / ufraw : RAW Image format viewer and GIMP plugin

  • enable DST correction for file timestamps

net-irc / rbot : A ruby IRC bot

x11-misc / xmobar : A Minimalistic Text Based Status Bar

  • Enables localized date support