what is the abbreviation of paris in terms of IATA
IATA airport codes are trigram letter designations for airports, like ORY (Paris-Orly Airport) and CPT (Cape Town International Airport). ISO 3166-1 alpha-2 country code is always used as first and second characters of time zone code. 2  If country is not divided into separate time zones â no more characters added. 3  Just 2 characters used. 4  If country is divided into time zones â 3rd character of time zone code is a digit â number of time zone in country.