Does it support both seconds and milliseconds?

Yes. The converter detects 10-digit second timestamps and 13-digit millisecond timestamps, then shows both second and millisecond output values.

Why do UTC and local time look different?

A Unix timestamp represents one moment in time. UTC and local time display that same moment in different time zones.

Is conversion processed locally?

Yes. Timestamp conversion runs in your browser and does not require uploading data to a server.

Unix Timestamp Converter

Convert Unix timestamps in seconds or milliseconds to readable dates, and convert dates back to timestamps.

Current Timestamp

Seconds

Milliseconds

Timestamp → Date

Date → Timestamp

Convert Unix timestamps in seconds or milliseconds

This Unix timestamp converter turns epoch timestamps into readable ISO, UTC, local, and relative date formats. It also converts selected dates back to timestamp seconds and milliseconds.

Timestamp Converter Seconds vs milliseconds

Unix timestamp converter FAQ

Does it support both seconds and milliseconds?: Yes. The converter detects 10-digit second timestamps and 13-digit millisecond timestamps, then shows both second and millisecond output values.
Why do UTC and local time look different?: A Unix timestamp represents one moment in time. UTC and local time display that same moment in different time zones.
Is conversion processed locally?: Yes. Timestamp conversion runs in your browser and does not require uploading data to a server.