[x] 29.12 Formatting What does the "ISO week-based week number" refer to? How does the user know what this means? Please make the text clearer.
[x] 29.13 Parsing see comment above - What does the "ISO week-based week number" refer to? How does the user know what this means? Please make the text clearer.
[x] 29.13 Parsing see comment above - what does the "ISO weekday" mean?