CFLib.org – Common Function Library Project

Description:
Compares a date/time string and validates it against the RFC 3339 - Date and Time on the Internet: Timestamps protocol. Its use is a requirement for all date/time values contained within Atom 1 feeds which is supported by CF8's CFFEED tag.

Return Values:
Returns a boolean.

Example:

#IsRFC3339('1999-01-31T00:01:43.05-23:00')#

Parameters:

Full UDF Source:

/**
 * Compares a date/time string and validates it against the RFC 3339 - Date and Time on the Internet: Timestamps protocol.
 * 
 * @param input      String to check. (Required)
 * @return Returns a boolean. 
 * @author Ben Garrett (bengarrett@civbox.org) 
 * @version 1, February 8, 2010 
 */
function isRFC3339(input) {
    return YesNoFormat(REFindNoCase('^(19|20)\d\d-(0[1-9]|1[0-2])-([0-2]\d|3[0-1])T([0-1]\d|2[0-4]):([0-5]\d):([0-5]\d)(.\d\d)?(Z|[\+|-]([0-1]\d|2[0-4]):([0-5]\d))$',input));
}