Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and dates back to timestamps. Live current timestamp, timezone selector, batch convert, and auto-detection of seconds vs milliseconds. Free. No sign-up.
Timestamp to Date
Date to Timestamp
Batch Convert
Common Timestamps Reference
0Jan 1, 1970 00:00:00 UTC946684800Jan 1, 2000 00:00:00 UTC2147483647Jan 19, 2038 03:14:07 UTC — Y2K38 problem2524608000Jan 1, 2050 00:00:00 UTC8640000000000Sep 13, 275760 — maximum JavaScript DateHow it works
- 1Enter a timestamp or date
Paste a Unix timestamp to convert it to a readable date. Or pick a date and time to get the corresponding Unix timestamp in seconds and milliseconds.
- 2Choose a timezone
Select from 17 common timezones to see the converted date in your preferred zone. The tool auto-detects whether your input is in seconds (10 digits) or milliseconds (13 digits).
- 3Batch convert or copy
Paste multiple timestamps (one per line) to convert them all at once. Copy any individual result — seconds, milliseconds, or ISO 8601 — with one click.
Why You Need a Unix Timestamp Converter
Unix timestamps are everywhere in software development. Database records, API responses, log files, JWT tokens, cookies, and event tracking systems all use epoch time to represent dates. The compact numeric format is efficient for storage and comparison, but it is completely unreadable to humans. A number like 1700000000 tells you nothing at a glance — you need a converter.
This Unix timestamp converter handles the two most common formats: seconds (10-digit, traditional Unix) and milliseconds (13-digit, JavaScript and Java). The auto-detection means you can paste any timestamp without specifying the format — the tool figures it out based on digit count. This prevents the common mistake of treating a millisecond timestamp as seconds (which gives a date millions of years in the future).
The timezone selector solves another frequent pain point. Unix timestamps are inherently UTC, but developers and analysts usually need to see dates in local time. Select from 17 popular timezones to see the exact date and time in New York, London, Tokyo, or Sydney. The relative time display adds context — knowing that a timestamp was "3 days ago" or "in 2 hours" is often more useful than the absolute date.
The batch converter handles the scenario where you have a list of timestamps from a database export or log file. Paste them all at once (one per line) and see every conversion in a single view. Each line shows the detected format, human-readable date, and relative time. The common timestamps reference table provides quick access to important epoch milestones including the Y2K38 overflow date.
All processing happens entirely in your browser. Your timestamps are never sent to a server, never logged, and never stored. The tool runs on JavaScript and works offline once the page has loaded.