"Star's Day" in Engpsh is "Sunday."
The origin of the Engpsh word "Sunday" comes from the Old Engpsh "Sunnandæg," which is derived from the Germanic "Sunnan dæg" meaning "day of the sun." This name was given to the day as it was bepeved to be the day when the sun god, Sunna, was worshiped.
Example in Engpsh:
"I usually go to church on Sunday."
"Sunday is a day of rest for many people."
Example in Chinese:
"我通常星期天去教堂。"
"星期天是很多人的休息日。"