Convert Unix timestamps to human-readable dates and vice versa. See UTC and local time instantly.
How to Use Unix Timestamp Converter
- 1Paste a Unix timestamp (in seconds or milliseconds) into the input field
- 2The equivalent UTC and local date/time appear instantly
- 3To convert the other direction, enter a date in the date picker or date/time fields
- 4Copy the generated timestamp to your clipboard with the copy button
- 5Use the "Now" button to get the current Unix timestamp immediately
Features
- Bidirectional conversion — Unix timestamp to date and date to Unix timestamp
- Supports both seconds (10-digit) and milliseconds (13-digit) Unix timestamps
- Displays UTC and local timezone simultaneously for easy comparison
- Real-time conversion as you type — no button clicking required
- "Now" button for instant current timestamp capture
- All processing in your browser — no data sent to any server
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp (also called epoch time) is the number of seconds (or milliseconds) that have elapsed since January 1, 1970 00:00:00 UTC, excluding leap seconds. It is widely used in programming, databases, and API responses.
What is the difference between seconds and milliseconds timestamps?
Seconds-based timestamps have 10 digits (e.g., 1717094400) and are common in Unix/PHP. Milliseconds timestamps have 13 digits (e.g., 1717094400000) and are common in JavaScript/Java. Our converter handles both automatically.
Why do developers use Unix timestamps?
Timestamps are timezone-independent (always UTC), easy to compare (higher number = later time), simple to store as integers in databases, and straightforward to calculate differences between two dates.
What is the year 2038 problem?
On January 19, 2038, 32-bit signed Unix timestamps will overflow because they cannot store numbers larger than 2,147,483,647. Most modern systems use 64-bit timestamps, which solve this for billions of years.