What is Take Off Time (TOT)?

Take Off Time (TOT) is the time that an aircraft takes off from the runway.

Take Off Time - Terminology

Airport Collaborative Decision-Making (A-CDM) specifies different terms for TOT:

• Calculated Take Off Time (CTOT): The time calculated and issued by the appropriate Central Management unit, as a result of tactical slot allocation, at which a flight is expected to become airborne.
• Estimated Take Off Time (ETOT): The estimated take off time taking into account the EOBT plus EXOT.
• Target Take Off Time (TTOT): The target take off time taking into account the TOBT/TSAT plus the EXOT.
• Actual Take Off Time (ATOT): The time that an aircraft takes off from the runway.

Further reference:

• Airport Collaborative Decision Making (A-CDM) Implementation Manual, Eurocontrol