Instantly convert timestamps to human-readable dates and vice versa.
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About Timestamp Converter
A free online timestamp converter that converts Unix timestamps to human-readable dates and back. Supports milliseconds, multiple timezones, and ISO 8601 format — essential for debugging APIs, databases, and log files.
Key Features
Unix to Date — Convert any timestamp to human-readable format
Date to Unix — Convert dates and times to Unix timestamps
Millisecond Support — Handle both second and millisecond precision
ISO 8601 Output — Standard format for APIs and databases
Current Timestamp — Get the live current Unix timestamp
100% Client-Side — All conversions happen in your browser
How to Use
Enter a Unix timestamp (seconds or milliseconds) in the top field, or select a date/time below.
The conversion happens instantly — see both the timestamp and formatted date.
Toggle between seconds and milliseconds with the precision selector.
Copy any value to your clipboard with the copy button.
Use Cases
API Debugging:Convert timestamps in API responses to readable dates during development.
Database Queries:Generate Unix timestamps for SQL WHERE clauses and date range filters.
Log Analysis:Convert server log timestamps to understand when events occurred.
Scheduling:Calculate Unix timestamps for cron jobs, reminders, and scheduled tasks.
Tips
Tip: If your timestamp has 13 digits, it is in milliseconds. Divide by 1000 to convert to seconds.
Tip: The Unix epoch starts at January 1, 1970 00:00:00 UTC. Negative timestamps represent dates before this epoch.
Alternatives
Command Line — date +%s on Linux/Mac
Python — int(time.time())
JavaScript — Math.floor(Date.now() / 1000)
FAQ
A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since January 1, 1970 00:00:00 UTC. It is a simple, universal way to represent points in time without timezone ambiguity.
Unix timestamps in seconds have 10 digits (like 1692844800). Millisecond timestamps have 13 digits (like 1692844800000). Many JavaScript APIs return milliseconds, while databases and Linux tools typically use seconds.
The most common reason is the seconds vs milliseconds confusion. A timestamp like 1692844800 is seconds, but 1692844800000 is milliseconds. Also check that you are interpreting the timezone correctly — Unix timestamps are always UTC.
ISO 8601 is an international standard for representing dates and times. It looks like 2024-01-15T14:30:00Z. It is widely used in APIs, databases, and configuration files because it is unambiguous and sortable as a string.
A 32-bit signed Unix timestamp will overflow on January 19, 2038, at 03:14:07 UTC (the "Year 2038 problem"). Modern systems use 64-bit timestamps which will not overflow for billions of years.
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