Unix Timestamp Converter

Convert between Unix timestamps (seconds & milliseconds) and human-readable dates. Supports parsing ISO/date strings and copying results.

Input (timestamp or date)

Result (ISO)

Local time

Unix timestamp (seconds)

Unix timestamp (milliseconds)

Notes & quick actions

If you paste a number with 13+ digits it's treated as milliseconds; 10 digits as seconds. Date strings will be parsed by the browser's Date parser (ISO works best).

Examples:

1692412800 → 2023-08-18T00:00:00Z
2023-08-18T12:00:00Z → 1692379200000