Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and dates back to timestamps.
Supports both seconds and milliseconds.
Timestamp → Date
Date → Timestamp
What Is a Unix Timestamp?
A Unix timestamp (also called epoch time or POSIX time) is the number of seconds that have
elapsed since January 1, 1970, at 00:00:00 UTC — a moment known as the Unix epoch. This
simple integer representation of time is used extensively in programming, databases, APIs,
and log files because it is timezone-independent and easy to compute with.
Seconds vs. Milliseconds
Traditional Unix timestamps are measured in seconds and are typically 10 digits long (e.g.,
1710374400). Many modern systems, including JavaScript’s Date.now(), use
millisecond timestamps — 13-digit numbers that provide precision to the thousandth of a
second. This converter detects and supports both formats so you always get accurate results.
Common Uses for Epoch Timestamps
Developers use Unix timestamps to store dates in databases, compare times across time zones,
set cookie and token expiration times, generate unique IDs, and debug server logs. Because
timestamps are just numbers, they can be sorted, compared, and transmitted more efficiently
than formatted date strings. This tool helps you quickly translate between the numeric
timestamp and the human-readable date format during development and debugging.
What Is a Unix Timestamp?
A Unix timestamp (also called Epoch time) represents the number of seconds elapsed since January 1, 1970, 00:00:00 UTC — known as the Unix Epoch. It's the universal standard for representing time in computing, used by operating systems, databases, APIs, and programming languages worldwide. For example, the timestamp 1700000000 represents November 14, 2023.
Convert Between Timestamps and Dates
This tool converts Unix timestamps to human-readable dates and vice versa. Enter a timestamp to see the corresponding date, time, and timezone, or enter a date to get the Unix timestamp. Supports both seconds and milliseconds (commonly used in JavaScript). Essential for developers working with APIs, databases, log files, and server timestamps.
All conversions happen in your browser using your local timezone settings.