To celebrate Anna's birthday, a birthday party will be held at 4:00pm tomorrow in the meeting room. Please come on time and celebrate together. Thank you.
The above translation is less formal and is suitable to be written on a memo or email.
To celebrate Anna's birthday, birthday cake sharing party will be held at 4:00 p.m. tomorrow at the meeting room. Please attend on time. Thank you.
To celebrate Anna's birthday, a birthday party will be held at 4:00pm tomorrow in the meeting room. Please come on time and celebrate together. Thank.