Web Tools
Timestamp Formatter
Parse and format timestamps in multiple standards: ISO 8601, RFC 2822, Unix seconds/milliseconds, UTC, locale, and relative time. Runs entirely in your browser — your data never leaves your machine.
timestamp date time unix iso-8601 formatter developer-tools
Published May 28, 2026
All interactive tools run entirely in your browser. Your data never leaves your device.
How It Works
Enter any timestamp — Unix seconds, Unix milliseconds, ISO 8601, or a human-readable date string. The tool parses it and displays the equivalent value in 9 different formats simultaneously.
Supported Input Formats
| Format | Example |
|---|---|
| Unix seconds | 1700000000 |
| Unix milliseconds | 1700000000000 |
| ISO 8601 | 2024-01-15T10:30:00Z |
| Date string | January 15, 2024 |
Output Formats
| Format | Example |
|---|---|
| ISO 8601 | 2024-06-15T12:30:45.000Z |
| RFC 2822 | Sat, 15 Jun 2024 12:30:45 GMT |
| Unix (seconds) | 1718451045 |
| Unix (milliseconds) | 1718451045000 |
| UTC String | Sat, 15 Jun 2024 12:30:45 GMT |
| Locale String | Browser’s locale format |
| Date Only | 2024-06-15 |
| Time Only | 12:30:45 |
| Relative | 3 days ago |
Features
- Multi-format output — see 9 formats at once
- “Now” button — insert current timestamp instantly
- Copy individual values — click any format to copy
- Flexible input — accepts multiple timestamp formats
- Private: runs entirely in the browser — no data transmitted