Unix Timestamp Converter
Convert between Unix timestamps, ISO 8601 dates, and human-readable formats. All processing happens in your browser.
Current Unix Timestamp:
Unix Timestamp → Date
ISO 8601 Date → Unix Timestamp
Keyboard Shortcuts:
- Ctrl/Cmd + Enter - Convert (based on focused input)
Privacy: All conversions happen locally using native Date API.
No data is sent to any server.
About Unix Timestamps
A Unix timestamp (also known as Epoch time or POSIX time) represents the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It is widely used in computing to track time in a simple, timezone-independent format.
Supported Conversions:
- Unix → Human Readable - Localized date/time string
- Unix → ISO 8601 - Standard format (e.g. 2024-01-15T10:30:00.000Z)
- ISO 8601 → Unix - Convert dates back to timestamps
- Seconds & Milliseconds - Auto-detects input precision
Common Use Cases:
- Debugging API responses with timestamps
- Converting log file timestamps
- Database timestamp inspection
- JWT token expiration checking
- Cron job scheduling
- Event sourcing and audit logs
ISO 8601 Format Examples:
Date only: 2024-01-15
Date and time (UTC): 2024-01-15T10:30:00Z
With timezone offset: 2024-01-15T10:30:00+05:30
With milliseconds: 2024-01-15T10:30:00.123Z
Tip: Unix timestamps in seconds are 10 digits (e.g. 1700000000),
while millisecond timestamps are 13 digits (e.g. 1700000000000).
This tool auto-detects the precision.