Convert a specific time from one time zone to another, and see the result across major world cities instantly.
Yes, the converter automatically accounts for daylight saving time changes based on the specific date you select.
This tool shows results for a curated list of major world cities across all time zones, covering the most commonly needed conversions.
Yes, it uses the browser's built-in timezone database (the same one used by operating systems), which is regularly updated and highly accurate.
This tool converts a specific date and time from one time zone into the corresponding local time across a range of major world cities, using the browser's built-in timezone database for accurate, automatically DST-aware results.
Converting time between zones isn't just a fixed offset — daylight saving time changes mean the exact difference between two locations can shift by an hour depending on the time of year, and different countries observe daylight saving on different schedules or not at all. This tool avoids all of these pitfalls by relying on the IANA timezone database built into modern browsers, which tracks the exact historical and current rules for every timezone worldwide, rather than a hardcoded offset that could be wrong for part of the year.
Once you select a date, time, and source time zone, the tool constructs the exact moment in time you specified, then formats that same moment using each target city's local timezone rules via the Intl.DateTimeFormat API — a standard, built-in JavaScript feature for locale and timezone-aware date formatting. Because this uses the same timezone data your operating system relies on, the results reflect the correct local time and date for each city, including any date-line rollover (where the date itself changes, not just the hour).
All conversions happen directly in your browser using built-in JavaScript APIs — no dates or times you enter are sent to any server.