Just tested this locally: 21 January 2014 on my repo is displayed as 21. Januar 2014 on my German client wiki.

The problem is being reported in regard to centuries specifically; see [[:d:WD:Contact the development team#Century dating—localization]]. (This does not mean there aren't issues with other dates as well.)

And in fact, the issue may be related to the fact that German seems to be the only localization, so testing on a German client probably won't help identify if there are other problems.

In T104447#1417847, @Izno wrote:

And in fact, the issue may be related to the fact that German seems to be the only localization, so testing on a German client probably won't help identify if there are other problems.

That's not the case, the problem here is that precisions aren't yet translated. MwTimeIsoFormatter::getMessage still forces English for them.

In T104447#1418032, @hoo wrote:

In T104447#1417847, @Izno wrote:

And in fact, the issue may be related to the fact that German seems to be the only localization, so testing on a German client probably won't help identify if there are other problems.

That's not the case, the problem here is that precisions aren't yet translated. MwTimeIsoFormatter::getMessage still forces English for them.

Maybe. But even at that the ordinal is coming out in "German"--for example, as "12." instead of "12th"

In T104447#1418803, @StevenJ81 wrote:

In T104447#1418032, @hoo wrote:

In T104447#1417847, @Izno wrote:

And in fact, the issue may be related to the fact that German seems to be the only localization, so testing on a German client probably won't help identify if there are other problems.

That's not the case, the problem here is that precisions aren't yet translated. MwTimeIsoFormatter::getMessage still forces English for them.

Maybe. But even at that the ordinal is coming out in "German"--for example, as "12." instead of "12th"

Well, the English version also is for example 3. century for the third century, so nothing special is being done for German.

hoo: It isn't displayed as 3. century for German though. See what I wrote on https://www.wikidata.org/wiki/Wikidata:Contact_the_development_team#Century_dating.E2.80.94localization

In T104447#1418842, @hoo wrote:

In T104447#1418803, @StevenJ81 wrote:

In T104447#1418032, @hoo wrote:

In T104447#1417847, @Izno wrote:

And in fact, the issue may be related to the fact that German seems to be the only localization, so testing on a German client probably won't help identify if there are other problems.

That's not the case, the problem here is that precisions aren't yet translated. MwTimeIsoFormatter::getMessage still forces English for them.

Maybe. But even at that the ordinal is coming out in "German"--for example, as "12." instead of "12th"

Well, the English version also is for example 3. century for the third century, so nothing special is being done for German.

Evidently not (see Nikki above). But then aside from the translation issues, the "English" is just simply wrong, because in English (British, American, or otherwise), you'd never say "12. century." You'd say "12th century."

In T104447#1419698, @Nikki wrote:

hoo: It isn't displayed as 3. century for German though. See what I wrote on https://www.wikidata.org/wiki/Wikidata:Contact_the_development_team#Century_dating.E2.80.94localization

Not true, it is. I test things before I post here, I'm not making stuff up…

In T104447#1432182, @hoo wrote:

Not true, it is. I test things before I post here, I'm not making stuff up…

It is now, so it must have very recently changed, because I'm not making stuff up either. It really was using 3 century for German on Wikidata and the German Wikisource a few days ago.

It's been a while ... is anything going on with this? Just wondering ...

Hasn't this been fixed recently? See https://gerrit.wikimedia.org/r/#/c/278234/