JSON LAB / BROWSER TOOLS
Timestamp Converter
Convert between Unix timestamps and ISO 8601 quickly.
What you can do
- Unix ms/s ↔ ISO 8601.
- Copy outputs in one click.
- Client-side conversion.
- Great for log debugging.
Questions, answered
Seconds or milliseconds?
Unix timestamps are commonly seconds, but many APIs use milliseconds. This tool supports both.
Why is my ISO invalid?
ISO strings must be parseable by the browser. Include timezone (Z or offset) when possible.