What is a Unix timestamp?

A Unix timestamp (epoch time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It is a universal way to represent a point in time without timezone ambiguity, widely used in databases, APIs, and log files.

What is the difference between seconds and milliseconds?

Unix timestamps are traditionally in seconds (10 digits). JavaScripts Date.now() returns milliseconds (13 digits). Many modern APIs and databases use milliseconds. This tool supports both.

What is the Unix epoch?

The Unix epoch is the reference point: January 1, 1970, 00:00:00 UTC. All Unix timestamps are measured as the number of seconds (or milliseconds) since this moment.

What is the Year 2038 problem?

Systems that store timestamps as a 32-bit signed integer will overflow on January 19, 2038. Modern systems use 64-bit integers, pushing the overflow date billions of years into the future.

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Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Live Unix clock, millisecond support, timezone display. Free timestamp converter — no sign-up.

CURRENT UNIX TIMESTAMP

1773665299

Mon, 16 Mar 2026 12:48:19 GMT

3/16/2026, 12:48:19 PM

Unix Timestamp → Date

Date & Time → Timestamp

About This Tool

Convert Unix timestamps (epoch time) to human-readable dates and times, or convert any date back to a Unix timestamp. Includes a live Unix clock, millisecond precision, and local timezone display.