Unix Timestamp Converter

About This Tool

A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since January 1, 1970 at 00:00:00 UTC — also known as the Unix epoch. It is a simple, unambiguous way to represent a specific point in time regardless of time zones or locale. Unix timestamps are used universally in databases, APIs, log files, file systems, and programming languages.

This tool provides three functions: a live clock showing the current Unix timestamp in seconds and milliseconds (updates every second), a converter from Unix timestamp to UTC and local human-readable date, and a converter from a selected date and time back to a Unix timestamp. Both seconds and milliseconds are supported.

The live timestamp is useful for quickly grabbing the current epoch time — for example to use as a value in a database query, debug a time-based issue, or check how far in the past a logged timestamp is.

How to Use

1. The Current Unix Timestamp section shows the live epoch time, updating every second.
2. To convert a timestamp to a date: choose the unit (seconds or milliseconds), enter the timestamp, and click Convert. Both UTC and local timezone results are shown.
3. To convert a date to a timestamp: use the date/time picker to select a date and time, then click Convert. The result is in the unit selected above.
4. Use the Copy buttons to copy any result to your clipboard.

Unix Timestamp Facts

• Unix epoch: January 1, 1970 00:00:00 UTC = timestamp 0
• Timestamps in seconds are 10 digits; milliseconds are 13 digits
• The 32-bit Unix timestamp will overflow on January 19, 2038 (the "Year 2038 problem")
• 64-bit timestamps won't overflow for billions of years
• JavaScript's Date.now() returns milliseconds; divide by 1000 for seconds