Peter, not in principle, no. But it hasn't gotten any easier in
practice. Well, maybe a little, because we've gotten rid of most of the
separate Scheme date code and call the wrapped C functions for most date
and time handling.

Managing stored data compatibility, whether in XML or SQL, will be a
major part of any such change. GnuCash's sprawling and massively
interdependent code base remains a major obstacle to fixing lots of
basic design goofs and this one is no different. The subsystems don't
hang together, more like they're tangled together.

You're pretty much stuck with me for a developer to work with, though
others might chime in if you ask on gnucash-devel or IRC. Derek is still
around and was involved the early design though he hasn't done any
GnuCash coding for many years.

There are independent pieces that could be done first, for example
reworking all of the standard interval code (Quarter, Month, Week) to
use dates instead of times and storage backend changes to handle dates
as well as times.

What were you planning to use for a date type? GLib's GDate? It's the
only ready-made date implementation I know of that doesn't have a
timezone problem, but we're trying to move away from GLib in GnuCash's
core, preferring the C++ standard library. Unfortunately std::chrono is
time-oriented and its date type is timezone-sensitive, as are
boost::date_time and ICU's.

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https://bugs.launchpad.net/bugs/365065

Title:
  gnucash is confused by timezone changes

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