FWIW, most phones allow dual time display, and GMT watches would be extra helpful here as you can essentially track both at once, using either as your 'main.'

FWIW, most phones allow dual time display, and GMT watches would be extra helpful here as you can essentially track both at once, using either as your 'main.' > After an eight-hour flight, if you went to bed at 21:00 yesterday, you’ll do the same today. The problem is, depending on where you landed, 21:00 could be typical start of the workday, and you'd be showing up to an empty office. > If you had a call at 13:00 yesterday, it’s still at 13:00 today This part sounds nice, until DST comes along to sabotage you. For only being twice a year though, it's probably still a net gain, one I hadn't really considered for someone who travels a lot.