A Unix timestamp converter lets you translate the cryptic numbers you see in logs, databases, and API responses into readable dates - and convert dates back to timestamps - without doing the math yourself. If you have ever wondered what 1716681600 means, this tool gives you the answer instantly.
What is a Unix Timestamp?
A Unix timestamp (also called epoch time or POSIX time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC - a reference point known as the Unix epoch. It is a universal, timezone-independent way to represent a moment in time.
Some systems use milliseconds instead of seconds (multiply by 1000), so 1716681600000 and 1716681600 refer to the same moment. Modern JavaScript's Date.now() returns milliseconds, while databases like PostgreSQL and C-based systems typically use seconds.
How to Use the Unix Timestamp Converter
- Enter a timestamp - type or paste a Unix timestamp (in seconds or milliseconds). The tool auto-detects the unit based on the number of digits.
- Read the converted date - the tool displays the date and time in your local timezone, in UTC, and in ISO 8601 format simultaneously.
- Use "Now" - click the "Now" button to instantly get the current Unix timestamp if you need it for logging or API requests.
Common Use Cases
- Decoding timestamps from server logs, crash reports, and error messages
- Converting API response fields (like
created_atorexpires_in) to readable dates - Checking when a JWT token expires by converting its
expfield - Generating the current timestamp for database inserts or API calls
- Verifying webhook delivery times by converting event timestamps
- Comparing timestamps across different timezones in distributed systems
Frequently Asked Questions
What is the difference between seconds and milliseconds timestamps?
Timestamps in seconds have 10 digits (e.g., 1716681600) and are used by Unix/Linux, Python, and most databases. Timestamps in milliseconds have 13 digits (e.g., 1716681600000) and are used by JavaScript and Java. The tool auto-detects which format you are using.
What is the maximum date a Unix timestamp can represent? On 32-bit systems, the maximum Unix timestamp is 2,147,483,647, which corresponds to January 19, 2038 - the "Year 2038 problem." Modern 64-bit systems can represent dates far beyond that.
What does ISO 8601 format look like?
ISO 8601 is an international standard for date and time representation. A typical example is 2024-05-26T12:00:00Z where Z indicates UTC. It is widely used in APIs and JSON data.
How do I get the current Unix timestamp in code?
In JavaScript: Math.floor(Date.now() / 1000). In Python: import time; int(time.time()). In PHP: time(). In SQL (PostgreSQL): EXTRACT(EPOCH FROM NOW()).
Use the Unix Timestamp Converter free, no sign-up required.