What day of the week is Father'Day always on?

what day of the week is it? What day is the fourth day of the week?是什么意思? What day is the first day of the week? what day of the week is your birthday on this year? what is the strongest day of the week What is the ＿（one）day of the week? What is the best day of the week for you What day of the week is it someday? What is the hottest day of a week? what day of the week is after thursday? What day is the fifth day of the week?T— what day is the third day of the week?翻译成中文.