What timezone is the result in?

Both: the UTC value (unambiguous) and your browser's local-time interpretation are shown together.

Why does the current timestamp shown at the top update every second?

It's a live convenience readout of right now, with a one-click copy button.

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Developer

Timestamp Converter

Unix timestamp to human-readable date and back, in UTC and your local time.

🔒 Runs entirely in your browser — nothing here is ever uploaded

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About the Timestamp Converter

Converts a Unix timestamp to a human-readable date (in both UTC and your local timezone) and back.

100% Free Runs in Your Browser No Sign-Up Required

How to use it

To convert a timestamp to a date, paste it into the first field.
To convert a date to a timestamp, pick a date/time in the second field.

Formula

Unix timestamp = seconds (or milliseconds) elapsed since 1970-01-01T00:00:00 UTC

Worked example

1798761600 = 2027-01-01T00:00:00 UTC.

Interpreting your result

A raw Unix timestamp carries no timezone of its own — this tool always shows both the UTC value and your browser's local-time interpretation side by side so there's no ambiguity.

Recommendations

• A 10-digit number is almost always seconds; a 13-digit number is almost always milliseconds — this tool auto-detects which.
• The date→timestamp direction reads your input as your browser's local timezone.

Frequently asked questions

This tool auto-detects based on digit count (10 digits ≈ seconds, 13 digits ≈ milliseconds for any date in the last ~50 years) — no manual toggle needed.