Unix Timestamp to Date Converter - Free & Instant Online
Convert a Unix timestamp to a human-readable date in local time, UTC, and ISO 8601 format — instantly.
Unix Timestamp → Date
Date → Unix Timestamp
Related tools & use cases
How to use Unix Timestamp to Date Converter - Free & Instant
- 1Enter a Unix timestamp (seconds or milliseconds).
- 2View the equivalent date in Local, UTC, ISO 8601, and relative format.
- 3Copy any result.
Privacy & security
Conversion happens locally using native JavaScript Date APIs.
No data leaves your browser.
Frequently asked questions
How do I know if my timestamp is in seconds or milliseconds?
A 10-digit number (like 1719849600) is seconds. A 13-digit number (like 1719849600000) is milliseconds. This converter detects the format automatically.
Converting Unix Timestamps to Human-Readable Dates
A Unix timestamp is the number of seconds (or milliseconds, depending on the system) since January 1, 1970 UTC. Converting it to a readable date is one of the most common tasks when reading API responses, log files, or database records.
Common use cases
Reading API Response Timestamps
Quickly convert a created_at or updated_at field from an API response into a date you can actually read.
Debugging Log Files
Convert the raw epoch timestamps in server logs to local time to correlate events with what a user reported.
Tips for best results
- Store and transmit timestamps as Unix time; convert to a readable, timezone-adjusted format only when displaying to a person.
More questions answered
Why does my converted date look 1000x off?
This happens when a millisecond timestamp is treated as seconds (or vice versa) — check the digit count of your input.