Which flight time must all pilots document and record?

The requirement for pilots to document and record their training and aeronautical experience for certificates and ratings is critical for maintaining a valid and up-to-date record of their flying qualifications. This includes all flight hours accumulated towards meeting the requirements for new certificates, ratings, or endorsements. Keeping accurate records is not only essential for compliance with regulatory standards but also helps pilots track their progress and experience levels over time.

Unlike other choices, which may pertain to different contexts or are not strictly required for documentation in the same manner, this option directly aligns with the regulations set forth by aviation authorities governing pilot certifications. This record-keeping is integral to ensuring that pilots are adequately qualified for the privileges they seek, which is paramount for maintaining safety in aviation.