Unix Timestamp Converter: Convert Timestamps to Dates & Back

What Is a Unix Timestamp?

A Unix timestamp (also called epoch time) is the number of seconds elapsed since January 1, 1970 00:00:00 UTC. It's the universal way computers represent time internally.

Why Developers Need Timestamp Conversion

API responses often return timestamps as integers

Database records store creation/modification times as epochs

Log files use timestamps for event ordering

Cron jobs and scheduled tasks reference epoch times

JWT tokens contain `iat` and `exp` as timestamps

How to Convert Timestamps

Visit the [Timestamp Converter](/tools/timestamp-converter)

Enter a Unix timestamp to see the human-readable date

Or enter a date/time to get its Unix timestamp

View UTC and local timezone simultaneously

Copy the result

Quick References

| Timestamp | Date |

|-----------|------|

| 0 | January 1, 1970 |

| 1000000000 | September 9, 2001 |

| 1700000000 | November 14, 2023 |

| 2000000000 | May 18, 2033 |

Seconds vs Milliseconds

Unix seconds: 10 digits (e.g., `1710000000`)

Unix milliseconds: 13 digits (e.g., `1710000000000`)

JavaScript uses milliseconds (`Date.now()`), while most APIs and databases use seconds. The converter handles both automatically.

Frequently Asked Questions

What is the Year 2038 problem?

32-bit systems storing timestamps as signed integers will overflow on January 19, 2038. 64-bit systems are unaffected.

Does it handle millisecond timestamps?

Yes, timestamps with more than 10 digits are automatically treated as milliseconds.

What timezone does it display?

Both UTC and your browser's local timezone are shown simultaneously.