Times update every second using your device's clock and IANA timezone data; daylight saving transitions are handled automatically. Related: time zone converter, time difference.
The page holds a list of every UN-recognized country plus a few commonly referenced territories, each mapped to an IANA time zone identifier. On load, JavaScript creates a card for each country, then a one-second interval calls the browser's Intl.DateTimeFormat API to format the current time, date, and UTC offset for every zone. Filtering is done client-side on the country name and capital. No server calls are made — everything runs in your browser.
This tool uses your device's system clock. If your device is a few seconds off from an atomic time source (like time.gov), you may see small discrepancies. The time zone offsets themselves come from the IANA database and are accurate.
Yes. The browser's Intl API automatically applies DST rules for each IANA time zone, so countries that spring forward or fall back will show the correct local time year-round.
Countries near the International Date Line (like Kiribati at UTC+14 or Samoa at UTC+13) can be a full day ahead. Conversely, Baker Island at UTC−12 can be a day behind most of the world.
Each country is mapped to a single representative zone, typically the capital or largest city. For example, the United States shows Eastern Time (New York). Countries with wide spans like Russia or the U.S. will only show one zone here.
Estimate only. Results reflect your inputs and standard formulas. Double-check important decisions independently.