Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates

The Unix Timestamp Converter is a live browser tool that displays the current Unix epoch in real time and bidirectionally converts between Unix timestamps (seconds or milliseconds) and human-readable date-time representations.

Current Timestamp

Click to copy · Updates every second

Timestamp → Date

Date → Timestamp

Frequently Asked Questions

How do I convert a Unix timestamp to a human-readable date?

Paste the Unix timestamp (e.g., 1700000000) into the Timestamp → Date field and click Convert to Date. The tool displays the equivalent date and time in UTC as well as your local time zone, ISO 8601 format, and relative time (e.g., ‘8 months ago’). Timestamps in milliseconds (13-digit) are also accepted.

What is a Unix timestamp and why do developers use it?

A Unix timestamp is the number of seconds elapsed since January 1, 1970 00:00:00 UTC (the Unix epoch). It is a simple integer with no time zone ambiguity, making it ideal for storing and comparing dates across systems. Most programming languages, databases, and APIs use it internally. Converting to and from human-readable dates is a routine debugging task.

How do I convert a specific date and time to a Unix timestamp?

Use the Date → Timestamp section. Enter the year, month, day, hour, minute, and second, then click Convert to Timestamp. The result is displayed in seconds and milliseconds. The calculation uses your local browser clock, so the output reflects your system’s time zone offset — take care when comparing against server-side UTC timestamps.

What is the Unix timestamp year 2038 problem?

The Year 2038 problem affects 32-bit signed integers used to store Unix timestamps. The maximum value of a 32-bit signed integer (2,147,483,647) corresponds to January 19, 2038. Systems using 32-bit timestamps will overflow and roll back to 1901 unless migrated to 64-bit storage. Modern 64-bit systems are unaffected; the issue mainly impacts legacy embedded systems and older databases.

Does this timestamp converter send my data to a server?

No. All conversion calculations run in your browser using the JavaScript Date object. No data is transmitted, and the tool works offline after the page loads. The live current timestamp display updates every second using a client-side timer.