Thanks for the info about Iran in the late 1970s. I installed the attached proposed patch. -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-Iran-DST-changes-in-late-1970s.patch Type: text/x-patch Size: 4747 bytes Desc: not available URL: <http://mm.icann.org/pipermail/tz/attachments/20220531/eebab2ca/attachment.bin>