Always use a comma when writing a date. The comma goes between the day of the month and the year.
Jim was born on May 30, 1989.
My grandparents were married on May 7, 1931.
If the date is written into the middle of a sentence, another comma must go after the year.
The date December 7, 1941, is important in American history.
Jim’s college graduation on June 4, 2019, marked the beginning of his adult life.
When writing a date, use a comma between the day and the year. Use a second comma after the year if the sentence continues.
▶Now you try it. Where should you insert a comma in this sentence? The wedding will take place on May 24 2025. Did you figure it out? Good for you!