Unix Time to Date Converter – Convert Unix Online (Free Tool)

Unix Time to Date converts seconds-since-epoch into human-readable dates. Auto-detects whether your value is in seconds (10 digits) or milliseconds (13 digits) so you don't have to remember the order of magnitude. Useful when reading logs, debugging timestamps stored in databases, or translating API responses.

• Works on desktop, tablet, and mobile in any modern browser
• Stable behavior across visits — no surprise version drift
• Your data stays private — all processing happens locally in the browser
• Strict and lenient parser modes for handling messy real-world data
• Handles UTF-8 BOM, mixed delimiters, and other edge cases that break simpler converters

1. Paste a Unix timestamp (10-digit seconds or 13-digit milliseconds — auto-detected)
2. Read the date in ISO 8601, UTC, local timezone, and relative ("3 hours ago") forms
3. Copy the format that matches your downstream use

• Reading timestamps from server logs and databases
• Inspecting JWT exp/iat/nbf claims
• Debugging cache TTLs and expiry calculations
• Translating API response timestamps for analytics

Result is far in the future or past.

The value might be in microseconds or nanoseconds. 16+ digits — divide by 1000 (μs) or 1,000,000 (ns) before pasting.