[tz] Re: Iran's transition from +04:00 to +03:30 in 1978

On 3/18/25 06:04, Roozbeh Pournader via tz wrote:

I hunted down the exact time of Iran's transition from +0400 to +0330.

Thanks for doing that. I installed the attached proposed patch to the development repository. It appears that the 1978-11-10 change from +04 to +0330 was at midnight between Friday and Saturday, whereas the 1977-10-20 change from +0430 to +04 was at midnight between Thursday and Friday. Historically, both Thursday/Friday and Friday/Saturday transitions have been reported in nearby countries (e.g., Jordan) so they're both plausible here.