Stuck on a Sunday

The book of the stuck in Sunday by Abdullah Nasser... "He is still stuck in Sunday, while the whole world has moved to Monday. He fears most that the Sundays will get mixed up and he will no longer be able to distinguish the Sunday that follows Monday, so the cursed Sundays will last another week. Whenever the clock approaches twelve at night, he thinks of jumping out of the Sunday window, and let what happens happen, but in reality he is afraid of crashing into Friday. If the only Friday in the week is unbearable, how about seven thick Fridays?"