What is a Unix timestamp?

A Unix timestamp is the number of seconds elapsed since January 1, 1970 00:00:00 UTC (the Unix epoch). It's a universal way to represent time in computing.

What's the difference between seconds and milliseconds?

Unix timestamps in seconds are 10 digits (e.g., 1700000000), while milliseconds are 13 digits (e.g., 1700000000000). JavaScript uses milliseconds, most systems use seconds.

Does this tool handle timezones?

Yes. The tool shows both UTC and your local timezone when converting timestamps, so you can see the exact time in both.

Unix 时间戳转换器

将 Unix 时间戳转换为可读日期，反之亦然。自动识别秒和毫秒。

当前 Unix 时间戳

1770549325

时间戳 → 日期

日期 → 时间戳

关于 Unix 时间戳

Unix 时间戳表示从 1970 年 1 月 1 日（UTC）起经过的秒数。广泛用于编程、数据库和 API 中。本工具可自动识别输入是秒还是毫秒。

使用方法

Enter a Unix timestamp to convert to a human-readable date
Or enter a date string to convert to a Unix timestamp
The tool auto-detects seconds vs milliseconds
View results in UTC, local time, and ISO format

使用场景

Converting API timestamps to readable dates
Debugging date-related issues
Comparing timestamps across systems
Working with JWT token expiration times