1)Sunday(воскресенье) is the first day of the week
2)Monday(понедельник) is the second day of the week
3)Tuesday(вторник) is the third day of the week
4)Wednesday(среда) is the fourth day of the week
5)Thursday(четверг)is the fifth day of the week
6)Friday(пятница) is the sixth day of the week
7)Saturday(суббота) is the seventh day of the week