Tools
Convert Unix timestamps to dates and back, with timezone-aware conversion, batch mode and code snippets.
Convert between Unix timestamps and human-readable dates with automatic unit detection, correct timezone and DST handling, batch conversion and ready-to-use code snippets. Everything runs in your browser — nothing is uploaded.
Seconds
—
Milliseconds
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UTC
— GMT
const nowSeconds = Math.floor(Date.now() / 1000);
const date = new Date(0 * 1000); date.toISOString(); // 1970-01-01T00:00:00.000Z
A Unix timestamp is just a number, and reading it back as a date takes either a script or a tool like this one. This converter detects whether you pasted seconds, milliseconds, microseconds or nanoseconds from the digit count, shows the result in UTC, your local timezone, ISO 8601, RFC 2822 and more, and handles the awkward edges most converters skip: the Year 2038 problem, daylight saving time gaps and ambiguous local times, and ISO week numbers at year boundaries. It also converts a date back to a timestamp in any IANA timezone, compares several timezones side by side, and can process a batch of timestamps at once.
Current Unix time in seconds and milliseconds, ticking every second with pause/resume.
Convert dates in any IANA timezone, with correct DST gap and ambiguity handling.
Paste a timestamp in seconds, milliseconds, microseconds or nanoseconds — the unit is detected automatically.
Copy-ready snippets in 12 languages and SQL dialects for the current timestamp.
Copy a link that carries your timestamp, unit and timezone in the URL hash.
Paste up to 5,000 timestamps or dates at once and export the results as CSV.
Enter a Unix timestamp in seconds, milliseconds, microseconds or nanoseconds — the unit is detected from the digit count.
See the result in UTC, your local timezone, ISO 8601, RFC 2822, relative time and more.
Pick a date, time and IANA timezone in the Date to timestamp panel to get the Unix timestamp for that instant.
Pin several timezones to see the same instant across all of them at once.
Copy a ready-to-use snippet for the current timestamp in JavaScript, Python, Go and nine other languages.
All parsing and conversion happens in JavaScript in this browser tab. No timestamp or date you enter is sent to Art of Code or anyone else.
Free online tool to create cron expressions using a visual builder or plain English. See next execution times instantly. Perfect for developers, DevOps, and system administrators.
Free online tool to format, beautify, and validate JSON. Features include syntax highlighting, minification, error detection, and customizable indentation. No signup required, 100% private - all processing happens in your browser.
Test regular expressions against your own text with live match highlighting, per-match capture groups and a token-by-token explain panel. Switch to replace mode to preview substitutions, or load a ready-made pattern from the library. Everything runs in your browser so nothing is uploaded.
Developed by MadMVP
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