Unix Timestamp Converter
Convert Unix seconds or milliseconds to UTC dates and ISO dates back to timestamps.
Current Unix timestamp
- Seconds
- —
- Milliseconds
- —
Mode
Input
1 chars1 lines1 / 100,000
Result
24 chars1 lines
Choose the unit explicitly. Date input requires an offset: 2026-09-26T12:00:00+09:00 or 2026-09-26T03:00:00Z. Invalid dates are rejected. Up to 100,000 UTF-16 units per input
Related tools
Format references
Tool page updated: