Originally Posted by lmsboy
So there's no way to enter english short words like "1d" when another language is selected?
I made some tests:
You can use 1m, 1h, 1d, 1w but need to enter 1maand instead of 1mo[nth] and 1j[aar] instead of 1y[ear] (field: geschatte tijd/estimated time). In German, 1mo[nat] works, too.
In the start and due fields, you can use the mentioned short forms, though 1m adds 1 month, not 1 minute. In German 1d does not work in these fields but 1t. "last", "next", "this", "now" do not work at all in German or Dutch -- you probably can use the Dutch equivalents since the German equivalents (heu[te], mor[gen], jetzt) do work. The day names only work in their English form (mon, tue, wed, and so on).
So, OmniFocus makes indeed "its best guess at things like bare numbers, times, and word fragments" in the respective language. It's a little inconsistent with day names, though. Anyway, in my opinion it would be convenient if the English short forms (1m, 1h, 1d, 1w, 1mo, 1y, last, next, this, now, and so on) would also always work, regardless in which localization OmniFocus is used.