I work remotely from New Zealand for a company in Ireland
I altered my work hours to 3AM to 12 noon. It is amazing.
I catch everyone in the office at the end of the day for meetings. I pick up and finish and work they need done, I get 3-4 hours of deep work every day when they are all gone.
And then I finish at noon, so I can go exercise and enjoy the day working on my startup.
Yes he has to wake up 1h earlier than me on that day, but he also probably earns 2 or 3 times my salary just because of his location so fair enough.