date stamp
A stamp or mark that shows the date, often used on documents, packages, or library books.
I had the document stamped with a date stamp at the post office.
The library book has a date stamp showing the due date.
消印 is a postmark that cancels the stamp, while 日付印 is a general date stamp not necessarily postal.
タイムスタンプ is a digital timestamp, whereas 日付印 is a physical stamp.
Standard modern spelling.
Variant using the older 附 kanji; rarely seen today.
Compound of 日付 (date) and 印 (stamp, seal).