Constant ISO8601_FLEX

pub const ISO8601_FLEX: Format;

The ISO8601 format unless the subseconds are zero, then they are not printed. The time scale is also only printed if it is different from UTC.

Limitation

When parsing a date, the time scale is only allowed if the subseconds are set. For example, 2015-02-07T11:22:33 UTC is invalid but 2015-02-07T11:22:33.0 UTC is valid.