Primitive type: date and time

DOC_MSE_VERSION: since 0.3.8

A point in time, consisting of a date and a time.
The file syntax uses [[http://en.wikipedia.org/wiki/ISO_8601|ISO 8601]] notation.

--File syntax--
> something: 2008-12-31 23:59:59

--See also--
| [[fun:to_date]]	Convert a value to a date
| [[fun:to_string]]	Convert dates to strings
