At our manufacturing company we frequently use expiration or cure dates in the format of nQxx

Ex1. 2Q18 = second quarter 2018

Ex2. 4Q17 = fourth quarter 2017

I think this date format is common enough to have a name in the manufacturing world but I don't know what the name of this format could be so I can refer to it easily. Nobody seems to know what to call it. Thus, what is a word that describes the manufacturing date format of 1Qxx

  • I think the other way around is more common, e.g. (20)18Q2.
    – JJJ
    Commented May 4, 2018 at 14:32

1 Answer 1


I think the closest you will get will be to describe it as xQYY format, analogous to what the SAS reference describes as YYQx format.

Interestingly, the ISO 8601 date and time standard makes no mention of quarters at all.

  • That is the other way around, right? The OP asks for xQYY, this is YYQx.
    – JJJ
    Commented May 4, 2018 at 15:55
  • @JJJ I'm suggesting that the OP describe it as xQYY format, and offered up the SAS YYQx format as an analogy.
    – Gnawme
    Commented May 4, 2018 at 17:18

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