pub fn validate_timezone_utc(dtm_value: &str) -> ConditionResultExpand description
Validate that a DTM value’s timezone portion ZZZ is “+00” (UTC).
The zone is the value’s last three characters: format 303
CCYYMMDDHHMMZZZ (15 chars) and 304 CCYYMMDDHHMMSSZZZ (17 chars) both
end in it. Reading it at a fixed offset of 12 took 304’s seconds for the
zone and failed every 304 value.
Example: validate_timezone_utc("202601012200+00") → True
Example: validate_timezone_utc("20260101220000+00") → True
Example: validate_timezone_utc("202601012200+01") → False