On 2024-03-13 10:03, Komka Péter via tz wrote: > Currently, in 2024, there is no rule "PRC" in use. Rules say when transitions occur. The PRC rule says the last transition was in 1991, therefore there have been no transitions since then and the clock settings are the same now as they were in October 1991. I don't see any error in Asia/Shanghai because of this.