Unix Timestamp Converter - Epoch Time to Date Tool

A Unix timestamp (also called Epoch time or POSIX time) is the number of seconds that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap seconds. It is a universal way to represent time across different systems and programming languages. For example, timestamp 1700000000 represents a specific moment in time regardless of timezone.

Simply paste or type the Unix timestamp (in seconds or milliseconds) into the input field, and the tool instantly shows the corresponding date and time in your local timezone. You can also enter a date and time to get the Unix timestamp. The tool auto-detects whether your input is in seconds or milliseconds.

Unix timestamps in seconds are 10-digit numbers (e.g. 1700000000), while millisecond timestamps are 13-digit numbers (e.g. 1700000000000). JavaScript and some APIs use milliseconds, while most databases and system calls use seconds. This converter handles both formats automatically.

Yes! The converter displays the converted date in your local timezone by default, and also shows the UTC (Coordinated Universal Time) equivalent. You can easily see both your local time and the universal time for any given timestamp. This is essential for coordinating across different time zones.

The Year 2038 problem affects systems that store Unix timestamps as signed 32-bit integers. The maximum value for a signed 32-bit integer is 2,147,483,647, which corresponds to January 19, 2038 at 03:14:07 UTC. After this point, timestamps will overflow and wrap to negative values, potentially causing software failures. Modern 64-bit systems do not have this limitation.