actualTime
AIBT (Actual In-Block Time): the time that an aircraft arrives in-blocks. (Equivalent to Airline/Handler ATA - Actual Time of Arrival, ACARS=IN).
estimatedTime
EIBT (Estimated In-Block Time): the estimated time that an aircraft will arrive in-blocks. (Equivalent to Airline/Handler ETA - Estimated Time of Arrival).
scheduledTime
SIBT (Scheduled In-Block Time): the time that an aircraft is scheduled to arrive at its parking position.