Cron Calendar
Explain cron expressions and preview the next run times in any timezone.
OpenConvert Unix timestamps. - runs entirely in your browser. Free, fast and private.
Paste seconds or milliseconds since epoch.
Convert timestamp to date or date back to epoch.
Human-readable ISO and locale strings display both zones.
Copy epoch or formatted date for logs and APIs.
A log line shows 1727193600 and someone asks what time that was in their city. Timestamp Converter turns Unix seconds (or milliseconds) into readable dates and the reverse when you need an epoch for a query.
Convert during incident response, JWT exp checks, cookie expiry debugging, or database migrations between epoch and ISO strings. Confirm whether the source is seconds or milliseconds; mixing them shifts dates by decades.
Pitfall: assuming the displayed local time is UTC. Note the timezone the UI uses, then re-express in UTC if your API stores Zulu times only.
Tip: pair with JWT Decoder when the claim you care about is exp or iat rather than a raw integer in a log.
Conversion is arithmetic and Date formatting in the browser. Epoch values you type are not logged remotely by this tool.
Related: JWT Decoder · JWT Expiration Checker
Processes data instantly with no server round-trips.
Your data never leaves your browser. Nothing is uploaded.
Works in any modern browser. Nothing to download or install.
No limits, no sign-up, no credit card required.
Works on desktop, tablet and mobile devices.
Beautiful in both themes. Your preference is saved.
Keyboard shortcut
Turn epoch fields into human dates during outages.
Convert a calendar time into Unix seconds for filters.
Cross-check JWT exp values against wall-clock time.
Answers for this tool. For site-wide help, open the FAQ hub.
Timestamp Converter convert unix timestamps. Output stays in your browser for quick iteration.
Prefer redacted samples. Even with local processing, treat prod credentials carefully and rotate anything accidentally shared.
No. Generators and linters produce text for you to copy into Git, CI, or consoles - they do not deploy for you.
Always run official CLIs (kubectl, terraform plan, actionlint, etc.) on the final files after using Timestamp Converter as a starting point.
Syntax may vary across Kubernetes/Terraform/GitHub Actions versions. Adjust generated snippets to your runtime version.
After the page loads, most authors work offline. Keep a local copy of critical manifests.
Use Sample to learn the format, edit, then Download/Copy into your editor.
Request it via Contact with the platform and version you use.