Timezone converter
Convert a date and time from one time zone to another, with the UTC offset shown for both.
Timezone converter
Paste a date and time — or a Unix timestamp — and this tool converts it from one IANA time zone to another, so you can see what "2pm in New York" actually is in Tokyo, Berlin or UTC. Enter the source and target zones as IANA names (Europe/Bratislava, America/New_York, Asia/Tokyo) and the result shows both times side by side, along with each zone's current UTC offset, so you can immediately see how far apart they are.
The tool accepts several common formats: full ISO 8601 with an explicit offset or "Z" (which is unambiguous and converts directly), a plain "YYYY-MM-DD HH:mm" wall-clock value (read in the source zone you set), or a bare Unix timestamp in seconds or milliseconds (auto-detected by magnitude). Paste multiple lines to convert a whole batch at once — each line is read and converted independently, so a list of meeting times or log timestamps takes one pass. Daylight saving time is applied correctly for the exact date on each line, using the same IANA database your browser already ships, so a July conversion and a January conversion for the same pair of zones can show different offsets.
Choose "Readable" output for a plain-language date and time in your interface language, or "ISO 8601" for a machine-parsable value with an explicit numeric offset — useful when the result feeds into a script, a spreadsheet or an API call. Lines that cannot be read as a valid date are marked with a "?" and counted separately in the tally, so a stray typo in a long list doesn't get silently dropped.
Everything runs locally in your browser: no date, timestamp or time zone name is ever sent anywhere. That makes it safe to convert scheduling data, log timestamps or calendar entries that reference internal systems or private meetings. Copy the result, download it as a .txt file, or paste it straight back into the input to try another pair of zones.