Enter seconds (10 digits) or milliseconds (usually 13 digits). The unit is detected automatically.
Conversion result
Converted date and timestamp values will appear here.
How to use this tool
1Choose Timestamp to date to convert a Unix timestamp, or Date to timestamp to convert a local date and time.
2For timestamp input, enter seconds or milliseconds. The tool detects milliseconds for values with an absolute magnitude of at least 1,000,000,000,000.
3For date input, select a date and time in your browser's local timezone. The result includes Unix seconds and milliseconds.
Common use cases
✓Read createdAt, updatedAt, and expiresAt values in API responses.
✓Convert epoch values while debugging logs and authentication flows.
✓Generate Unix timestamps for test data and API requests.
