Between Middenmeer and Washington D.C there's a time difference of six hours.
The first night in the States I was rather tired and after a brief waking up at 2:45, I slept nicely until 9:00 o'clock. The second day, which was my first working day, I woke up around 5:00. On Thursday I woke up at 5:45 in the morning, and yesterday around 7:00 o'clock. I went to be around 22:00 o'clock each night.
Today, Saturday, we slept in, and I woke up somewhere around 9:00 o'clock, which is a great feeling. I think my body is now pretty much adjusted to the new timezone.