Convert the date as well as the time
Two cities may have different seasonal clock rules, so the time difference can change during the year. Enter the actual date of your meeting and use location-based time zones instead of assuming that a familiar abbreviation always means the same UTC offset.
Worked examples
Formula / Calculation Method
How to Use This Tool
- Enter a date and time.
- Choose the source and target time zones.
- Click Convert, or click 'Use Now' to convert the current time.
Common Use Cases
Skipped and repeated clock times
When clocks move forward, some local times do not exist. The converter rejects those inputs rather than silently moving the time. For example, 02:30 on 8 March 2026 in New York is skipped.
When clocks move back, a local time can occur twice. The tool chooses the earlier occurrence and flags it in Source Time. For a specific second occurrence, start from its known UTC time instead. New York’s 01:30 on 1 November 2026 occurs at both 05:30 and 06:30 UTC; this tool selects 05:30 when starting from that wall-clock time.
Keep your browser’s time data current
Conversions use the time zone rules bundled with your browser or operating system. Governments can change those rules, especially for future dates, so update your software and confirm important future travel times with the organizer. Older browsers may show a shorter list of common zones.
Swap changes the source and target zones while keeping your entered date and time. Use Now fills the current wall-clock time in the source zone. Results have minute precision.