PrimeUtil

Unix Timestamp Converter

Convert Unix epoch timestamps (seconds or milliseconds) to formatted local and UTC dates, or convert any date and time to its Unix timestamp. Shows the current timestamp live and handles both past and future dates.

Current Unix timestamp:0

Features

  • Convert Unix timestamp to human-readable local and UTC date
  • Convert any date and time to its Unix timestamp
  • Supports both seconds and milliseconds epoch timestamps
  • Shows current Unix timestamp updated in real time
  • ISO 8601 formatted output
  • Copy any value to clipboard instantly

Frequently Asked Questions

What is a Unix timestamp?
A Unix timestamp (also called epoch time) is the number of seconds (or milliseconds) that have elapsed since January 1, 1970, 00:00:00 UTC. It is the universal way that computers store and compare dates and times, and is used in databases, APIs, log files, and programming languages worldwide.
How do I convert a Unix timestamp to a date?
Paste the Unix timestamp into the converter input and select whether it is in seconds or milliseconds. The tool instantly shows the corresponding human-readable date and time in both your local time zone and UTC.
What is the difference between Unix time in seconds and milliseconds?
Unix time is most commonly expressed in seconds since the epoch. However, many programming languages and systems (like JavaScript's Date.now()) use milliseconds. A millisecond timestamp is 1000 times larger than a second timestamp — for example, the same moment is 1700000000 in seconds and 1700000000000 in milliseconds.
What is the Unix epoch?
The Unix epoch is the point in time from which Unix time is counted: January 1, 1970, 00:00:00 UTC. Before this date, Unix time is negative. The choice of 1970 was arbitrary but has become the universal standard across operating systems and programming languages.

From our blog