For a seasonal celebration, the essential details are the actual gathering date and format. The holiday name sets the mood but does not replace an address, time and reply contact.
If the gathering is before or after the holiday itself, write the actual date in full. For a New Year gathering, check the year and start time, especially when the programme runs past midnight.
Dinner, costumes and family attendance
Clarify whether the plan includes dinner, themed clothing and children. For household invitations, ask guests to confirm adult and child numbers in one reply.
Questions about your selection
Can I use only the holiday name?
Include the full date and time: guests may interpret the gathering day differently. This matters especially for a celebration on the eve of a holiday.
How do I invite an entire household?
Use a household salutation or list the invited people. Clarify whether children and additional guests are included so the reply helps with seating numbers.