Originally Posted by
Calchas
I think the employer expects me to turn up for work at more or less the right time and how I arrange my activities around that is not really her concern ...

+1 Million
I am expected back in the office on the the morning following my vacation.
When I am in Asia wth the 6- hour time difference and a direct Asia-Europe 12hour flight, I can and will often fly overnight, resting/sleeping and arrive in Europe early morning between 0500 - 0700
I simply go straight to work, as my new current day of 0900-1700 is same as say 1600-0000 in Asia where I just arrived from and I can still do my job.
I can not do this returning from USA or South America, as the time different is the other way around