Proposed resolution:

This wording is relative to N4810.

1. Modify [time.parse], Table 88 — "Meaning of parse flags", as indicated:

   Table 88 — Meaning of parse flags

   Flag	Parsed value
   […]
   %d	The day of the month as a decimal number. The modified command %Nd specifies the maximum number of characters to read. If N is not specified, the default is 2. Leading zeroes are permitted but not required. The modified command %EOd interprets the locale's alternative representation of the day of the month.
   […]