What is the difference between seconds and milliseconds?

Unix timestamps in seconds are typically 10 digits (e.g. 1717200000). Timestamps in milliseconds are 13 digits (e.g. 1717200000000). JavaScript's Date.now() returns milliseconds.

How do I get the current Unix timestamp?

The 'Current Unix Timestamp' shown at the top updates every second. You can also click 'Use Now' to load it into the converter. In code: Math.floor(Date.now() / 1000) in JavaScript.

Does this work with negative timestamps?

Yes. Negative Unix timestamps represent dates before January 1, 1970.

Is my data sent to a server?

No. All conversions run entirely in your browser using JavaScript's built-in Date object.

How do I tell if a timestamp is in seconds or milliseconds?

Timestamps in seconds are typically 10 digits (e.g. 1717200000). Timestamps in milliseconds are 13 digits (e.g. 1717200000000). The tool auto-detects which format you entered.

How do I get the current timestamp in code?

JavaScript: Math.floor(Date.now() / 1000). Python: import time; int(time.time()). PHP: time(). Unix shell: date +%s.

Does this support negative timestamps?

Yes. Negative timestamps represent dates before January 1, 1970 (e.g. -1 = December 31, 1969 23:59:59 UTC).

Unix Timestamp Converter — Epoch Time to Date Converter Free

Convert Unix timestamps to human-readable dates and vice versa. Live current timestamp with seconds and milliseconds support. Free online epoch converter.

Current Unix Timestamp

1781726771

1781726771000 ms

Unix Timestamp → Human Readable

UTCThu, 01 Jan 1970 00:00:00 GMT

Local1/1/1970, 12:00:00 AM

ISO 86011970-01-01T00:00:00.000Z

Relative20622 days ago

Date / Time → Unix Timestamp

Date & Time

Output Unit

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What is Unix Timestamp Converter — Epoch Time Converter Free?

A Unix timestamp (also called Epoch time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It is timezone-independent and widely used in programming, databases, and APIs. Our Timestamp Converter shows the current live Unix timestamp and lets you convert timestamps to UTC, local time, ISO 8601, and relative time — and convert any date/time back to a Unix timestamp in seconds or milliseconds.

How to Use Unix Timestamp Converter — Epoch Time Converter Free

1The current Unix timestamp is displayed and updates every second at the top.
2To convert a timestamp: enter your Unix timestamp (seconds or milliseconds) in the top section.
3See the converted date in UTC, local time, ISO 8601, and relative format.
4To convert a date to a Unix timestamp: use the date/time picker in the bottom section.
5Choose seconds or milliseconds output and copy the result.

Key Features

Live current Unix timestamp updated every second
Auto-detect seconds vs milliseconds (10 vs 13 digit timestamps)
Convert timestamps to UTC, local, ISO 8601, and relative formats
Convert any date/time to Unix seconds or milliseconds
One-click copy for each output format

Benefits

Debug API responses and log files with timestamps
Convert timestamps from databases (MySQL, PostgreSQL) to readable dates
Generate timestamps for API requests and testing
Understand relative time at a glance

Why Use Irreva for Unix Timestamp Converter — Epoch Time Converter Free?

Debug API responses and log files with timestamps

Convert timestamps from databases (MySQL, PostgreSQL) to readable dates

Generate timestamps for API requests and testing

Runs 100% in your browser — files never leave your device.

No account, no sign-up, no subscription — free forever.

Works on any device: desktop, tablet, or mobile.

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