Timestamp Converter
Convert Unix timestamps to dates and vice versa with timezone support
Free online Unix timestamp converter to convert between epoch time and human-readable dates instantly. Shows UTC/GMT and local timezone. Perfect for APIs, logs, JWT tokens, and debugging. Live epoch clock. Bidirectional conversion. 100% client-side, no server transmission, complete privacy.
...seconds since Jan 1, 1970
GMT / UTC
...Your Timezone (UTC 0:00)
...Unix Timestamp ? Date/Time
Date/Time ? Unix Timestamp
Common Timestamps
What Is a Unix Timestamp?
A Unix timestamp (also called Epoch time, POSIX time, or Unix Epoch) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC — known as the Unix Epoch. It provides a single, universal number that represents a specific moment in time, independent of timezone or locale. Unix timestamps are used extensively in programming, databases, APIs, and system logs.
Why Use Unix Timestamps?
- Timezone-independent: A timestamp means the same thing everywhere — no timezone conversion errors
- Easy to compare: Simply compare two integers to determine which event happened first
- Compact storage: A single 32-bit or 64-bit integer vs. a formatted date string
- Language-agnostic: Every programming language can handle Unix timestamps natively
Common Use Cases
- Debugging API responses that return timestamps (JWT exp/iat, OAuth tokens)
- Converting log file timestamps to human-readable dates
- Setting cookie expiration times and cache headers
- Scheduling events and comparing dates in databases (PostgreSQL, MySQL, MongoDB)
- Working with JavaScript
Date.now()and Pythontime.time()
Seconds vs. Milliseconds
This converter uses seconds (10 digits, e.g., 1704067200). Some systems like JavaScript use milliseconds (13 digits, e.g., 1704067200000). If your timestamp has 13 digits, divide by 1000 before converting. Java System.currentTimeMillis() also returns milliseconds.