Do you happen to be ADHD? I don't get jet lag and attribute it to the manifestations of ADHD.

Perpetual time blindness is a common trait, basically being unaware of and having an inability to track the passing of time. It's difficult to explain to anyone without an extreme version of it - mostly because I have zero frame of reference to understanding the human concept of time (beyond the basic/scientific definitions), and how the perceived concrete linear structure is so natural for others. 5 hours is 20mins, 5 minutes is also 20mins. I can track the days on a calendar everyday for weeks, but the next morning I will have no idea what the day of the week is until I check. I also have to calculate my age any time I am asked. Seeing/speaking to someone after 10+ years away is like the passing of only a couple of days, no matter who it is.

I believe I had read something connecting ADHD, time blindness and an understated or lack of a circadian rhythm. I mostly fly TPAC/TALT and still don't understand the concept of "jet lag", it is just as imaginary and made up to me as ADHD is to others.