Time Zone Converter

A time zone converter takes a clock time in one location and tells you the matching local clock time in another — accounting for the offset between the two zones, including the half-hourly nuances of zones like India Standard Time (UTC+5:30) and the seasonal shift of Daylight Saving Time. The math sounds simple but is full of edge cases: DST in two zones can fall on different weekends, some countries don't observe DST at all, and zone abbreviations like “CST” mean different things in Chicago versus Shanghai. This converter uses the browser's IANA time-zone database via Intl.DateTimeFormat — the same data that powers iOS, Android, macOS, and every major calendar app — so every conversion is accurate for any past, present, or future date you choose. Pair it with the Unix Timestamp Converter for epoch-to-date math, or the Days Until Calculator for cross-zone deadline countdowns.