Developer Tools
Time Zone Converter
Convert any date and time between two time zones instantly. Pick from major cities or choose any IANA time zone.
Quick City Presets
UTC → New York
New York → London
London → Tokyo
LA → New York
New York → Shanghai
Berlin → Singapore
Chicago → Paris
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World Clock — Current Time
About Time Zone Conversion
Time zones are offsets from UTC (Coordinated Universal Time), ranging from UTC−12:00 to UTC+14:00. Many regions also observe Daylight Saving Time (DST), shifting clocks by one hour seasonally — this tool accounts for DST automatically.
IANA time zones (like America/New_York) are more precise than abbreviations like EST or PST, since abbreviations can be ambiguous across regions. This tool uses your browser's built-in Intl API for accurate, DST-aware conversion.