Welcome to our free Unix Epoch time converter, the fastest way to convert between human-readable dates and Unix timestamps. Whether you’re a developer working with APIs, a data analyst reviewing logs, or simply curious about how computers track time, this tool helps you quickly convert dates to epoch and epoch to dates, with support for both seconds and milliseconds.
Unix Epoch time (also known as Unix time, POSIX time, or Unix timestamp) is a standardized system for representing moments in time. Instead of using calendars and clocks, epoch time counts the number of seconds that have passed since January 1, 1970, at 00:00:00 UTC, ignoring leap seconds. This simple and universal system is the backbone of most operating systems, databases, and programming languages today.
For example, the epoch value 1700000000 corresponds to
Sunday, November 14, 2023, 06:13:20 UTC. By converting between
these two formats, you can seamlessly move between computer-friendly and
human-friendly representations of time.
Epoch timestamps are commonly expressed in two formats:
1706200000.
1706200000123.
Our epoch converter supports both formats, letting you copy or save values instantly in the precision you need.
Working with dates and times can be complicated, especially when dealing with different formats, time zones, and levels of precision. An epoch converter simplifies the process:
A key feature of this converter is the ability to switch between local time and UTC (Coordinated Universal Time). When you choose local, the converter uses your device’s timezone. When you select UTC, the calculation aligns with a standardized, timezone-independent reference.
For distributed systems and global applications, UTC is recommended to avoid inconsistencies caused by daylight savings or regional time differences.
0 seconds =
January 1, 1970, 00:00:00 UTC.
Nearly all modern programming languages include built-in methods for working with epoch:
Date.now() returns epoch in
milliseconds.
time.time() returns epoch in
seconds.
System.currentTimeMillis() returns
epoch in milliseconds.
time.Now().Unix() returns epoch in
seconds.
Our converter makes it easy to double-check your code’s output and generate test values without writing additional scripts.
The epoch start date (January 1, 1970) was chosen by Unix creators as a convenient reference point. It has since become a universal standard across computing.
No. Leap seconds are not counted in epoch time. This makes Unix time slightly different from atomic time, but accurate enough for most applications.
Systems using a 32-bit signed integer to store epoch seconds will overflow on January 19, 2038, at 03:14:07 UTC. Modern 64-bit systems don’t face this limitation.
Yes! This tool supports date → epoch and epoch → date conversions. Just enter your value and the result will be displayed instantly.
Our free epoch converter is a must-have tool for developers, analysts, and students. With live Unix time display, precise conversions between dates and timestamps, millisecond support, copy-to-clipboard options, and timezone awareness, it simplifies one of the most common tasks in programming and system administration. Use it to debug, analyze, or just learn more about how computers represent time.