Unix Timestamp Converter

What Is a Unix Timestamp Converter?

Unix timestamps are the standard time representation in databases, APIs, log files, and programming languages. Converting between epoch seconds and human-readable dates is a constant need for developers debugging logs, building time-based features, and working with APIs that return timestamps. This bidirectional converter handles both seconds and milliseconds, with timezone support.

Example

Unix Timestamp Input:

1775304600

Human Date Output:

2026-04-04 10:50:00 UTC

How to Use This Converter

Paste your Unix Timestamp data into the input panel.
View the converted Human Date output — it updates instantly.
Click Copy to copy the result to your clipboard.
Verify the output matches your expectations before using in production.

Developer Tips

Unix timestamps count seconds since January 1, 1970 UTC. JavaScript Date.now() returns milliseconds, not seconds - divide by 1000 before storing as a Unix timestamp.
The Year 2038 problem: 32-bit systems store Unix timestamps as signed integers that max out at 2,147,483,647 (January 19, 2038). Migrate to 64-bit timestamps before then.
Unix timestamps are always in UTC. When displaying to users, always convert to their local timezone. Storing timestamps in local time causes bugs when users cross timezone boundaries.

Related Converters

All conversions run entirely in your browser — no data is sent to any server. For the specification, see UnixTimestamp.com — Reference.

Frequently Asked Questions

What is a Unix timestamp?

A Unix timestamp (epoch time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It's a universal way to represent time as a single integer, avoiding timezone and format ambiguity.

What is the difference between seconds and milliseconds?

Unix timestamps are traditionally in seconds (10 digits as of 2026). JavaScript's Date.now() returns milliseconds (13 digits). If your timestamp has 13 digits, divide by 1000 before converting. Confusing the two is one of the most common timestamp bugs.

What is the Year 2038 problem?

32-bit systems store timestamps as a signed 32-bit integer, which overflows on January 19, 2038, at 03:14:07 UTC. After this, timestamps wrap to negative values. 64-bit systems solve this — they won't overflow for 292 billion years.

How do I get the current Unix timestamp?

In JavaScript: Math.floor(Date.now() / 1000). In Python: import time; time.time(). In Bash: date +%s. In SQL: UNIX_TIMESTAMP(). All return the current time as seconds since epoch.

Found this helpful?