You can see the grammar and lots of examples at http://bunkat.github.io/later/parsers.html#text http://bunkat.github.io/later/parsers.html#text. For your questi

You can see the grammar and lots of examples at http://bunkat.github.io/later/parsers.html#text http://bunkat.github.io/later/parsers.html#text. For your question, it would be 'on Wednesday on the first day instance every 1 month' or 'on the first day instance on Wed' would also work.