Unix Timestamp (Epoch) Converter

Turn Unix timestamps into readable dates — local time, UTC and ISO 8601 — or convert a date back into epoch seconds and milliseconds. A live clock shows the current timestamp, and seconds/milliseconds are detected automatically.

🔒 100% private — files never leave your browser

Current Unix timestamp

In seconds

In milliseconds

Timestamp → Date

Date → Timestamp

Pick a date and time (your local timezone)

Epoch seconds

Epoch milliseconds

How to use the Timestamp Converter

1 Paste a Unix timestamp to decode it, or pick a date to encode it — both directions work on the same page.
2 The tool auto-detects seconds vs. milliseconds and shows local time, UTC and ISO 8601.
3 Copy any result with one click.

Frequently asked questions

What is a Unix timestamp?

The number of seconds elapsed since 1 January 1970 00:00:00 UTC (the "epoch"). It is the standard way computers store points in time because it is timezone-free and unambiguous.

Is my timestamp in seconds or milliseconds?

This tool detects it automatically: values up to 12 digits are treated as seconds, longer values as milliseconds. JavaScript and Java typically use milliseconds.

Is anything sent to a server?

No. All conversion happens locally in your browser. Your files never leave your device — all processing happens locally in your browser.

JSON Formatter Format, validate and minify JSON with syntax highlighting and clear error messages. Free, instant, and fully client-side. QR Code Generator Create QR codes for URLs, text, WiFi, email or phone. Adjust size and colors, download as PNG or SVG — free, no watermark. Base64 Encoder / Decoder Encode text to Base64 or decode Base64 back to text. UTF-8 safe, instant, with one-click copy — fully client-side. URL Encoder / Decoder Encode or decode URLs and query strings with proper percent-encoding. Handles spaces, symbols and Unicode — instant and client-side. Hash Generator Generate SHA-256, SHA-384, SHA-512, SHA-1 and MD5 hashes from text instantly. Compare checksums and verify integrity — client-side only. UUID Generator Generate one or hundreds of cryptographically random UUID v4 identifiers instantly. Bulk mode, one-click copy — fully client-side.