Open EDTF Files Online

FAQ about EDTF

Q1: Is EDTF a proprietary format?

A1: No, EDTF is an open standard developed by the Library of Congress and is freely available for anyone to use and implement.

Q2: Can EDTF handle time zones?

A2: While EDTF primarily focuses on dates and periods, it can incorporate time information, though its strength lies in expressing uncertainty about whole dates or periods, rather than complex time zone handling. For precise time zone handling, ISO 8601 with explicit offsets or Z (Zulu/UTC) is more common.

Q3: Does OpenAnyFile.app directly "open" .edtf files?

A3: Since EDTF defines a data string format rather than a standalone file type, OpenAnyFile.app can display and help you interpret files (like text, JSON, or XML) that contain EDTF strings. You won't typically find a file with just a .edtf extension.

Q4: Why would I use EDTF instead of a regular date?

A4: You would use EDTF when you need to convey more information than a regular precise date can. This includes expressing uncertainty (e.g., "19th century," "circa 1945"), ranges of dates ("1939/1945"), or partially known dates ("2023-10?"). It's excellent for historical records where exact dates are often unknown.