Want to fix the local time zone on your Drobo FS?

# cat /etc/profile 
# Set the TimeZone explicitely to PST/DST
export TZ=PST8DST

Aside from correcting the spelling mistake I actually want to use my local time zone (London).

Changing the TZ environment variable to GMT0BST did the trick, not forgetting to add this to /etc/profile too.