In an application targeted to US users for stocks analysis, they can select the period used in the calculation and the idea is to differentiate between immediate available data vs aligned fractions of the year/month/week.

For example, if I say "Previous 3 months" and you look at it from February, the app should calculate from October-December and not November-January, I need the terms to describe these periods.

  • Previous Day
  • Previous Week (7 days)
  • Previous Fortnight (14 days)
  • Previous Bimester (2 months)
  • Previous Trimester (3 months)
  • Previous Quadrimester (4 months)
  • Previous Semester (6 months)
  • Previous Year

Are these terms used in the US? If not, are there alternatives? Thanks

  • 1
    If you leave the actual duration in the selection screen, I do not see why using any word to describe it would matter... – Skooba Mar 21 '17 at 19:24
  • 2
    Try books.google.com/ngrams with corpus = American English to compare theirs relative usages. I suspect bi-/quadrimester will be rare. – ķ̢̫̬̺͚̻͚̹̙̔̎ͣ͆͛͛ Mar 21 '17 at 19:29
  • 6
    Only Day, Week, and Year are common in non-technical use in the US. Trimester and Semester are regularly used, but only to divide up pregnancies and school years, respectively. Fortnight is very rare (and probably will sound distinctly British or old-fashioned even to folks who know what it means) and I've never heard Bimester or Quadrimester used anywhere, ever (though they very well might be, in some technical area where I don't venture). – 1006a Mar 21 '17 at 19:34
  • 1
    @k1eran Thank you, I am going to check that. – Alexandre Borela Mar 21 '17 at 19:36
  • 1
    Somewhat related: One word substitutions for number of days? – choster Mar 21 '17 at 19:47

In the end I opted to follow skooba comment and use month numbers instead. Most of the terms I showed before were either (archaic)accounting terms or the closest one I found... but it looks like it would be more confusing than just using month numbers.

  • 1
    I'd consider carefully whatever Google calendar or Apple do, since I'm sure they've spent a fortune on this type of UI issue. – ķ̢̫̬̺͚̻͚̹̙̔̎ͣ͆͛͛ Mar 21 '17 at 22:05

Not the answer you're looking for? Browse other questions tagged or ask your own question.