Deicing Holdover
Holdover time calculation made easy
Deicing holdover challenges
Having trouble determining HOT?
Designed for airline pilots
Save time and money by determining HOT prior to takeoff
Features

Pilots are alerted when HOTs expire.
FAA and Transport Canada are all available.
Digital versions of the HOT guidelines in PDF format.
Check your remaining holdover time.
Notes and cautions of the tables are accessible from the Calculator page.
App available in offline mode.