Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and back. View UTC, ISO 8601, RFC 2822, and relative time instantly.

Current Unix Timestamp
1771667204

Auto-detects seconds (< 10 digits) vs milliseconds (≥ 13 digits)

Select a local date and time to convert to Unix timestamp

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Enter a timestamp or pick a date, then click Convert to see results.

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About Timestamp Converter

A Unix timestamp (also known as Epoch time or POSIX time) is a system for tracking time as a running total of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC. It is widely used in programming, databases, APIs, and server logs because it provides a timezone-independent, compact way to represent a specific moment in time.

Our Timestamp Converter makes it effortless to translate between Unix timestamps and human-readable dates. Whether you are debugging API responses, analyzing log files, or setting expiration times for tokens and caches, this tool gives you instant conversions in multiple formats including UTC, ISO 8601, and RFC 2822, along with useful metadata like relative time, day of week, and week number.

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How to Use

01

Choose a Mode

Select "Timestamp to Date" to convert a Unix timestamp, or "Date to Timestamp" to convert a calendar date. Use the quick buttons for common values like Now or Start of Day.

02

Enter Your Value

Type a Unix timestamp (seconds or milliseconds are auto-detected) or pick a date and time using the date picker, then click Convert.

03

Copy Results

View the conversion in multiple formats — UTC, local time, ISO 8601, and more. Hover over any result row and click the copy icon to grab the value you need.

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Frequently Asked Questions

What is a Timestamp Converter? expand_more
A Timestamp Converter is a tool that translates between Unix timestamps (the number of seconds since January 1, 1970 UTC) and human-readable date formats. It helps developers, system administrators, and analysts quickly interpret or generate timestamps used in code, APIs, databases, and log files.
Does it handle millisecond timestamps? expand_more
Yes. The tool automatically detects whether your input is in seconds (typically 10 digits) or milliseconds (13 digits) and converts accordingly. You do not need to manually specify the precision.
Is my data processed securely? expand_more
Absolutely. All conversions happen entirely in your browser using the native JavaScript Date API. No data is sent to any server, so your timestamps and dates remain completely private.
What output formats are supported? expand_more
The converter displays results in UTC, local time, ISO 8601, and RFC 2822 formats. It also shows the Unix timestamp in both seconds and milliseconds, relative time (e.g., "3 days ago"), day of the week, ISO week number, and day of the year.