Timezone Converter

Convert times between any world timezones — schedule meetings, coordinate teams, and avoid confusion across time zones.

🌍 World Clock (Current Time)

About Timezone Converter

Timezone conversion is a daily challenge for distributed teams, remote workers, and global applications. The world has over 400 distinct timezone identifiers in the IANA timezone database (the standard used by most operating systems and programming languages). This tool converts any time between any two timezones using the browser's built-in Intl API for accurate, DST-aware conversion.

Daylight Saving Time (DST) is automatically handled — the converter uses the correct UTC offset for the given date, not just the timezone's standard offset. This means that converting a summer date from New York to London correctly applies EDT (UTC-4) rather than EST (UTC-5), and BST (UTC+1) rather than GMT (UTC+0).

The world clock panel shows current local times in major cities worldwide, updating every minute. This is useful for scheduling meetings across multiple timezones, checking if colleagues are within working hours, and understanding the current time context before making calls or sending messages.

FAQ

What is UTC and why is it the standard?
UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. It never changes for daylight saving time, making it the unambiguous reference for all timezone calculations. All timezones are expressed as UTC offsets (UTC+5:30, UTC-8:00, etc.).
What is the difference between GMT and UTC?
GMT (Greenwich Mean Time) and UTC are often used interchangeably, but UTC is the modern scientific standard. GMT is a timezone (used in the UK in winter), while UTC is a time standard based on atomic clocks. UTC does not change for DST; GMT technically can.
Does this handle Daylight Saving Time correctly?
Yes. The converter uses the browser's Intl API with IANA timezone identifiers, which correctly applies DST transitions based on the specific date being converted. Historical DST changes are also handled correctly.