Hello,

the current ConTeXt Standalone contains a bug when attempting to output Czech dates.

Minimal example:
\mainlanguage[cs]
\starttext
\currentdate
\stoptext

Expected output:
13. řijna 2013

Received output:
day, ,month, ,year

The culprit appears to be a missing comma in the language definition in lang-def.mkiv:

\installlanguage
  [\s!cs]
  [ % ...
   \c!rightquotation=\upperrightdoublesixquote,
   \c!date={\v!day,\fourperemspace,\v!month,\space,\v!year}
   \s!lefthyphenmin=2,
   % ...
]

Add a comma at the end of the line defining the date format; this appears to fix the problem.

As far as I can tell, the definitions of Slovak (sk) and Turkmen (tk) appear to be suffering from the same problem.