Timezone List

Timezone List provides a searchable, filterable directory of all IANA timezone identifiers from the tzdata database, which is the authoritative source used by Linux, macOS, Android, and all major programming languages for timezone calculations. Each entry displays the IANA identifier, current UTC offset, timezone abbreviation, and DST status indicator. The IANA database contains over 600 timezone identifiers covering every inhabited region on Earth, and this tool makes it easy to find the correct identifier for any city, region, or country without memorizing the exact string.

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How to Use

Browse the full timezone list or use the search box to filter by city name, country, region, timezone abbreviation, or UTC offset. Filter by continent or region using the region tabs to narrow the list. Click any timezone entry to expand it and see its full details including DST transition rules and common city examples. Copy the IANA identifier string directly for use in application configuration, database fields, or API parameters that require an IANA timezone name.

Common Use Cases

• •Finding the exact IANA timezone identifier for a specific city or country for use in application timezone configuration settings
• •Looking up current UTC offsets and abbreviations for timezone dropdowns in scheduling applications and calendar tools
• •Identifying which IANA timezones are currently observing daylight saving time and their corresponding summer UTC offsets
• •Selecting valid IANA timezone strings for PostgreSQL AT TIME ZONE clauses, Python pytz usage, and Java ZoneId.of() calls
• •Auditing and standardizing timezone identifiers across microservices that may be using inconsistent or deprecated timezone abbreviations

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