Date: Tue, 29 Jan 2019 23:32:45 -0800 From: Paul Eggert <eggert@cs.ucla.edu> Message-ID: <96498127-37cf-e097-2b18-10864f7a0edf@cs.ucla.edu> | Also, if an ingredient labeled "expires 08/07/2019" is made in Puerto Rico and | used in Germany, do the applicable FDA regulations say that the date should be | interpreted in Puerto Rico time or in German time? Bigger problem, does that mean the 8th of July or the 7th of August ? In Puerto Rico, that would probably be the latter, but in Germany quite possibly the former, which would have them being used for a month after their intended expiry. Most drugs I see have the expiry date listed as (just) month and year (perhaps unless they have a very short shelf life) - but for anything that is years away from the manufaacture date is anyone (FDA included) really asking anyone to believe that one day here or there is going to make a difference, especially as environmental conditions are most likely not well controlled. The hour (or two) of time variation for summer time is never going to be relevant. kre