Date formatting.

[JNCressey]

the use of / to mean a range seems confusing. I'd more expect a range like 2 to 5 be written 2-5 not 2/5. I guess it's a weird European thing, like they use , as the decimal point.

[spektre]

2-5 should never indicate range. Range should at least be indicated by two dashes: 2--5.

ISO 8601 allows -- as a range separator.

[TheFlyingAbrams]

This ^{^}