Timestamp Converter
Convert between Unix timestamps and human-readable dates
Display timezone: UTC
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Enter a timestamp or date to convert
Supports Unix timestamps (seconds/milliseconds), ISO 8601, and most standard date formats.
About Timestamp Converter
Convert between Unix timestamps and human-readable dates instantly. Unix timestamps count the seconds (or milliseconds) since January 1, 1970 (the Unix epoch) and are the standard time representation in APIs, databases, log files, and system events. This converter lets you paste a Unix timestamp and see it as ISO 8601, UTC, local time, and relative time (e.g. "3 hours ago"), or enter a date and get the corresponding Unix seconds and milliseconds. Everything runs in your browser — no server calls are made.
How to Use Timestamp Converter
- Enter a Unix timestamp (seconds or milliseconds) to convert it to human-readable date formats.
- Or enter a date string to convert it to Unix seconds and milliseconds.
- View the result in ISO 8601, UTC, local time, and relative formats.
- Copy any output value using the copy button.
Timestamp Converter FAQ
Can I convert Unix timestamps to human-readable dates?
Yes. Enter Unix seconds or milliseconds and the tool instantly shows ISO 8601, UTC, local, and relative time formats.
Can I convert dates back to Unix time?
Yes. Enter a date string and the tool outputs the corresponding Unix timestamp in both seconds and milliseconds.
Does it handle millisecond timestamps?
Yes. The tool auto-detects whether your input is in seconds or milliseconds based on its magnitude and converts accordingly.
What is the Unix epoch?
The Unix epoch is January 1, 1970 00:00:00 UTC. Unix timestamps count the number of seconds elapsed since this reference point.
Which timezone is used for local time display?
Local time uses your browser's timezone setting. UTC output is always shown alongside for unambiguous reference.