[tz] Historical data for Iran

Paul Eggert eggert at cs.ucla.edu
Tue May 31 20:33:32 UTC 2022

On 5/31/22 07:58, Michael H Deckers wrote:
> It could
>     take effect on the next midnight at the earliest,

The translated text doesn't give any effective date or time. Possibly 
the rule change was effective the instant the vote was taken. In 
practice no doubt it took some time for people to actually change their 

Without further information the usual practice in tzdb for this sort of 
thing is to just give the date, as an approximation that's good enough.

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