Epoch / Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and times, or convert dates to Unix timestamps. Shows GMT, local, and relative time.
Timestamp to Human date
Supports seconds, milliseconds, microseconds and nanoseconds
Human date to timestamp
What is a Unix timestamp?
A Unix (epoch) timestamp is the number of seconds elapsed since January 1, 1970 00:00:00 UTC. It is timezone-agnostic and used universally in databases, APIs, and log files.
Milliseconds vs seconds
Most Unix timestamps are in seconds (10 digits). JavaScript uses milliseconds (13 digits). This tool auto-detects both, plus microseconds and nanoseconds.
Why use Epoch online?
Epoch in the browser saves context switching: no CLI install, no fragile one-liners, and instant feedback for teammates who do not live in the terminal. It is ideal for debugging, demos, and quick checks during code review.
Tips for best results
Work with a sample payload first, then paste production data. Keep privacy in mind: prefer local browser processing for secrets, tokens, and customer data. Bookmark this page for faster access next time.
How to use
- Paste a Unix timestamp in the top section and click Convert — GMT, local, and relative time are shown.
- Or use the bottom section to pick a date and time to get its Unix timestamp.
- Review the output and use Copy to paste into your editor, ticket, or chat.
- Need another utility? Scroll to Related Tools below for Epoch companions on skybin.io.
- For a deeper walkthrough, read the linked Skybin blog article at the bottom of this page.
- Double-check results before using them in production — especially for security-sensitive data.
Online tool vs terminal
| Terminal / CLI | This tool |
|---|---|
| Install CLI tools or write a one-off script | Open the tool in your browser — no install |
| Look up flags in man pages or Stack Overflow | Paste input or upload files where supported |
| Repeat for each file format or edge case | Get instant visual feedback and copy buttons |
All conversions happen in your browser — nothing is sent to any server.
Frequently Asked Questions
- What does Epoch do?
- Convert Unix timestamps to human-readable dates and times, or convert dates to Unix timestamps. Shows GMT, local, and relative time.
- What formats does this support?
- Seconds (10-digit), milliseconds (13-digit), microseconds (16-digit), and nanoseconds (19-digit) timestamps.
- Why is my timestamp off by a few hours?
- Timestamps are timezone-agnostic. The local time shown uses your browser's timezone. If you expect a different timezone, use the Timezone selector.
- Is this tool free to use?
- Yes. All Skybin developer tools are free with no account, API key, or usage limits.
- Does my data get sent to a server?
- No. Processing runs in your browser whenever possible. Sensitive input never leaves your device unless a tool explicitly fetches a URL you provide (e.g. OG Validator).
- Can I use this on mobile?
- Yes. The tools work in modern mobile browsers, though a desktop screen is easier for large JSON or PDF workflows.
- How is this different from desktop apps?
- There is nothing to install or update. Open a bookmarked URL and start working — ideal for quick tasks during development or support calls.
- Are there keyboard shortcuts?
- Most tools support standard paste (Ctrl+V / Cmd+V) and select-all in text areas. Copy buttons provide one-click output.
- Does Skybin store my history?
- No. We do not log tool inputs or outputs. Refreshing the page clears in-memory state unless the tool encodes state in the URL.