Gallery2 sitemap module

If you’re having problems with Gallery2’s sitemap module, and Google Sitemaps is complaining about the time format, try the following. Go to the Gallery2modulessitemap directory and open Sitemap.inc. Change the following:

substr_replace(
gmstrftime("%Y-%m-%dT%H:%M:%S%z", $entity->getModificationTimestamp()),
":", -2, 0));

to:

gmstrftime("%Y-%m-%dT%H:%M:%S+00:00", $entity->getModificationTimestamp()));

It will hardcode the timezone offset to 0 hours, but at least your sitemap will work.