The zoneinfo.zip archive contains time zone files compiled using the code and data maintained as part of the IANA Time Zone Database. The IANA asserts that the database is in the public domain. For more information, see https://www.iana.org/time-zones ftp://ftp.iana.org/tz/code/tz-link.html https://datatracker.ietf.org/doc/html/rfc6557 To rebuild the archive, read and run update.bash.