The bundled zoneinfo.zip contains IANA Time Zone Database 2026c files,
compiled and distributed with Go 1.27.1. IANA places the database in the
public domain. See https://www.iana.org/time-zones.

The ZIP reader, Android database reader, Windows transition and filename
conversion, and Windows abbreviation table adapt Go code under the BSD
3-Clause license in Go-BSD-3-Clause.txt.

The archive's hash and generation instructions are in
src/time/zone/data/manifest.json and scripts/generate-timezones.py.