Hi,

I'd just like to clarify the date->string conversion characters in Table 1 of https://srfi.schemers.org/srfi-19/srfi-19.html

~U | week number of year with Sunday as first day of week (00...53) # should be 00..51 ?
~V | week number of year with Monday as first day of week (01...52) # should be 'Sunday'
...
~W | week number of year with Monday as first day of week (01...52)
~x | week number of year with Monday as first day of week (00...53) # should also be 51?

I might be interpreting this information incorrectly, as one of the Editors pointed out to me, this might be a little more complicated than my initial instincts given https://en.wikipedia.org/wiki/ISO_week_date#Last_week

Secondly

~x doesn't appear to correspond to any week number function in the reference implementation.

https://github.com/scheme-requests-for-implementation/srfi-19/blob/9a81ca80c5f19c0f246a5537a4fedbcfdf56cd10/srfi-19.scm#L1105

Looking forward to your feedback,

❯ brett