Matt Johnson wrote: > Hmmm, at least T&D says Crozet is UTC+5 while TZDB says UTC+4. Which is in error? I asked a French-speaking friend to look into this, and he said tzdb appears to be correct, at least as of 2014. He inferred Crozet's UTC offset from this blog: http://www.taaf.fr/Journal-de-bord-du-Marion-Dufresne-Novembre-2014-OP3