Unix Timestamp Converter - Date & Time

How the Timestamp Converter Works

1. 01Enter a Unix timestamp (seconds or milliseconds) to convert to a human-readable date
2. 02Or select a date and time to convert to a Unix timestamp
3. 03The converter handles both directions instantly
4. 04Results show the date in your local timezone and UTC

Understanding Unix Timestamps

A Unix timestamp counts the seconds since January 1, 1970 (the Unix epoch). It's the standard way computers store time internally and is used in databases, APIs, and log files. JavaScript uses milliseconds (13 digits) while most other systems use seconds (10 digits). Always store timestamps in UTC to avoid timezone confusion - convert to local time only for display.

When to Use a Timestamp Converter

Use this converter when debugging API responses that contain Unix timestamps, analyzing server logs with epoch time, converting between time zones, or working with databases that store dates as timestamps.

Common Use Cases

• ·Debug API responses that return dates as Unix timestamps instead of readable strings
• ·Analyze server logs where events are recorded in epoch time → JSON Formatter & Validator
• ·Convert between time zones by using UTC timestamps as the common format
• ·Calculate durations between events using timestamp arithmetic
• ·Set expiration dates in JWT tokens or caching headers using Unix timestamps → Base64 Encoder & Decoder

Expert Tips

• ✻Always store timestamps in UTC and convert to local time only for display - this prevents timezone bugs in distributed systems
• ✻JavaScript uses milliseconds (13 digits) while most other languages use seconds (10 digits) - dividing by 1000 or multiplying by 1000 is a common fix
• ✻For dates before January 1, 1970, Unix timestamps are negative numbers - not all systems handle negative timestamps correctly

Frequently Asked Questions