Download the time zone database

The database behind this service is the free TimeZoneDB release, derived from the IANA tz database and licensed under Creative Commons Attribution 3.0.

Current release: 2026-09-22, 142582 rows. Download TimeZoneDB.csv.zip (mirror) · CSV at timezonedb.com · MySQL dump at timezonedb.com. The release date is published at /date.txt for automated checks.

Format

country.csv: country_code, country_name.

time_zone.csv: zone_name, country_code, abbreviation, time_start (Unix time when the rule takes effect), gmt_offset (seconds), dst (0/1). The rule in effect at a given instant is the row with the greatest time_start not after that instant.