Hi, It seems, that you cannot use self defined conversions in \date:
\defineconversion[mytest][X-\romannumerals] \starttext Self defined conversion: \convertnumber{mytest}{1} (OK)\\ Predefined conversion in date: \date[d=1][day:a] (OK)\\ Self defined conversion in date: \date[d=1][day:mytest] (not OK) \stoptext Is this a bug, or a feature? How could one use self defined conversions in \date please? TIA for any help, -- Peter ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___________________________________________________________________________________