modification time
Computing term for the timestamp when a file or record was last modified.
Please check the modification time of the file.
更新日時 is more common for 'update date/time' in general software contexts, while 修正時間 specifically refers to the modification time attribute of a file.
Compound of 修正 (modification) and 時間 (time), likely a calque from English 'modification time' used in computing.