On 23/04/2019 14:43, Jiří Činčura wrote: > Regarding the exception, what would happen if you store valid date at > that time and you later, with new DST rules, try to read it? > > That is not a problem. The ambiguity exists only when transforming a timestamp+TZ (as one sees it) to UTC. After parse the literal, it's always in UTC+TZ.
UTC+TZ is always transformed to a valid displayable timestamp+TZ. Adriano Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel