Unix Timestamp Converter
Convert Unix epoch timestamps into human-readable dates and convert dates back to timestamps. Support seconds, milliseconds, UTC and local time directly in your browser.
Convert Unix Timestamp
Convert epoch time into readable date and time
Unix Timestamp Input
Enter a Unix timestamp in seconds or milliseconds
Converted Date Output
Readable UTC and local date/time
Waiting
Ready to Convert
Enter a Unix timestamp and click Convert Timestamp.
Input
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Milliseconds
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Seconds
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Current Epoch
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Browser-Based Timestamp Conversion
This implementation converts Unix timestamps directly in your browser with JavaScript. Conversion, copying and date calculations do not require your timestamp data to be sent to a server.
Converter Features
Convert Epoch Time in Seconds
Convert timestamps and dates quickly with browser-based processing.
Instant Conversion
Convert Unix epoch values into readable date and time output.
Seconds & Milliseconds
Automatically detect or manually select timestamp precision.
UTC & Local Time
View converted values in UTC, ISO 8601 and your local timezone.
Copy & Download
Copy converted output or save results as a text file.
Three Simple Steps
How to Convert a Unix Timestamp Online
Enter Timestamp
Enter a Unix timestamp in seconds or milliseconds into the input editor.
Convert Timestamp
Click Convert Timestamp to validate the input and remove unnecessary formatting.
Copy or Download
Review UTC, ISO and local time output, then copy or download the result.
Unix Timestamp Guide
What Is a Unix Timestamp?
A Unix timestamp is a numeric representation of time measured from the Unix epoch: January 1, 1970 at 00:00:00 UTC. Many systems store epoch time as elapsed seconds, while JavaScript and some APIs commonly use milliseconds.
Unix timestamps are widely used in databases, APIs, logs, authentication systems, analytics platforms and distributed applications because they provide a compact machine-friendly representation of an instant in time.
Unix Timestamp Example
Timestamp in seconds:
0UTC date:
1970-01-01T00:00:00.000ZWhy Convert Unix Timestamps?
Epoch values are efficient for software but difficult for people to read. Converting a timestamp helps developers inspect logs, debug APIs, verify expiration times and understand when an event occurred.
A single instant can be displayed differently across timezones, so this converter shows standardized UTC and ISO output alongside the browser's local date and timezone.
Seconds vs Milliseconds
Traditional Unix time is commonly expressed in seconds since the epoch. JavaScript timestamps are commonly expressed in milliseconds since the epoch.
The converter can automatically detect typical timestamp lengths, or you can explicitly choose seconds or milliseconds for predictable conversion.
Unix Time vs Human-Readable Time
Unix time identifies an instant numerically and is generally independent of display formatting. Human-readable time adds calendar fields, formatting conventions and timezone presentation.
UTC output is useful for consistent system comparisons, while local output is useful for understanding the same instant in the user's current timezone.
Common Uses for Unix Timestamps
API Debugging
Inspect created, updated and expiration times returned by APIs.
Application Logs
Convert numeric event times into readable dates during troubleshooting.
Databases
Review epoch-based date fields and stored event timestamps.
Token Expiration
Check expiry and issued-at values used in authentication workflows.
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Unix Timestamp Converter FAQs
Convert Unix Timestamp Now
Enter epoch time and generate readable UTC and local date values in seconds.
Convert Timestamp →