Sorry if this is a really basic question, but some time spent searching
has failed to find for me the definitive detailed documentation on
exactly how Firebird handles time zones (I'm particularly interested, to
start with, in using CURRENT_TIMESTAMP to create a value in a TIMESTAMP
field, and later reading it out and using it to display in a UI, but
that's only to start with).

Can someone point me in the right direction please?

--
Tim Ward