📅DateTime Calculator
🔢Developer Tool

Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates — with live epoch time.

Current Unix Timestamp (seconds)
0
0 ms
Auto-detect: 10-digit = seconds, 13-digit = milliseconds.
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Enter a timestamp or date to see the conversion results.

How to Use the Unix Timestamp Converter

  1. 1Timestamp → Date: enter a Unix timestamp (in seconds or milliseconds) and click Convert.
  2. 2Date → Timestamp: switch modes, enter a date and time, then click Convert.
  3. 3Use the copy button to copy any result to your clipboard.
  4. 4The live counter at the top shows the current epoch time updating in real time.
💡Unix timestamps with 13 digits are in milliseconds (common in JavaScript); 10-digit timestamps are in seconds (common in Unix/Linux).

Unix Timestamp FAQ

What is a Unix timestamp?

A Unix timestamp is the number of seconds elapsed since January 1, 1970 (UTC), known as the Unix Epoch. It is widely used in programming and databases.

What is the difference between seconds and milliseconds timestamps?

Unix timestamps are typically in seconds (10 digits). JavaScript uses milliseconds (13 digits). This tool auto-detects which format you enter.

What is the maximum Unix timestamp?

On 32-bit systems, the maximum timestamp is 2,147,483,647 (January 19, 2038), known as the Year 2038 problem. 64-bit systems support dates far into the future.