A condition where the sufferer routinely adds or subtracts wrong when planning things in more than one time zone.
Side effects include missed appointments, multiple calendar resends, manic tap-dancing through that presentation you thought was 2 hours from now. Adrenaline, cringing, lame apologies.
Coping mechanisms: OCD-like checking of the hour; counting out from East to West coast on your fingers. Pinky: Eastern is 1 pm; Ring finger is Central - so, noon; Pacific is the pointer, that'd be 10 a.m. - right? Right?
You told NYC to dial in at 10 but Chicago at 11; so is the call for 10 or 12EST?
D'oh! 10EST. Sorry - Time Zone Dyslexia.