What is the format of birthday wishes?

1. Mr./Ms. XX: Today is the 80th birthday of my grandfather, Mr. XX. Fortunately, he is in good health and has children and grandchildren around his knees. He cherishes it very much. Therefore, it is scheduled to be held at 11:30 noon on X, month, X, year X. The grand hotel is preparing a small banquet to celebrate my father's birthday. We sincerely invite you and your family to attend. We would also like to take this opportunity to express our deep gratitude to the noble people, friends and relatives who have cared for and supported us! We look forward to visiting you!

2. Dear XX, hello! I will celebrate my grandpa’s 80th birthday at XX place on X, month, X, and I would like to invite you to attend. Thank you.

3. On Sunday

4. It is hereby scheduled to hold a grandpa’s eightieth birthday celebration at a certain place on a certain day, month, and time of a certain year. We sincerely invite someone to visit us

5. Dear Mr. XX, I have decided to hold my grandfather’s 80th birthday party at a certain hotel at a certain time on a certain day, month, and year. We sincerely invite you to attend and look forward to your arrival!