Welcome to the Kestrel Tools World Clock! Here's how to get started:

• The clock at the top displays your current local time.
• Below, you'll find a list of pre-selected world cities and their current times.
• To add a new city, type its name or timezone (e.g., 'New York' or 'America/New_York') into the 'Add City/Timezone' field and click 'Add'.
• To remove a city, click the 'Remove' button next to it.
• Use the 12h/24h toggle to switch the time display format for all clocks.

Timezones are regions of the globe that observe a uniform standard time for legal, commercial, and social purposes. They are often based on a country's boundaries or geographical areas.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks and time. UTC offsets (e.g., UTC-5, UTC+8) indicate how many hours a timezone is ahead or behind UTC.

Daylight Saving Time (DST) is the practice of advancing clocks during warmer months so that darkness falls at a later clock time. Our World Clock automatically accounts for DST where applicable.

You can customize the list of cities displayed:

• Adding Cities: Use the search box to find and add cities. You can search by city name or by IANA timezone name (e.g., 'Europe/Paris').
• Default Cities: The clock starts with a default set of major world cities.
• Removing Cities: Simply click the 'Remove' button associated with any city in the list.

Your customized list is saved in your browser for your next visit.