About the milliseconds converter
One millisecond (ms) is one-thousandth of a second. Though short, it is essential for accurate measurements in computing, networks, trading systems, and user interactions.
Why it matters
Milliseconds enable precise profiling, scheduling, and synchronization across systems. They are crucial in optimizing algorithms, measuring page load times, and enhancing user experience.
Typical conversions
- ms → Date: convert a millisecond timestamp to a human-readable date
- ms → μs / s / min / h / d: express time in smaller or larger units
- ms → months: approximate monthly intervals (≈ 30.44 days per month)
How to use this milliseconds converter
- Enter milliseconds: Type or paste your millisecond value in the input field
- Press Enter or Convert: Hit the Convert button or press Enter for instant results
- Copy results: Click any Copy button to copy the converted value to your clipboard
- Use Now button: Get current UNIX timestamp in milliseconds
Common use cases
- JavaScript Development: Converting Date.now() results to readable dates
- Database Analysis: Understanding timestamp columns in MySQL, PostgreSQL
- API Development: Working with REST API timestamp responses
- Log Analysis: Converting log timestamps to human-readable format
- Performance Testing: Measuring execution time in milliseconds
Related tools
Explore our other time conversion tools:
- Seconds Converter - Convert seconds to various time units
- Date to Timestamp Converter - Convert dates to milliseconds
- Duration Calculator - Calculate time differences
- Microseconds Converter - Work with microsecond precision
Code snippets
Quick examples for converting milliseconds:
JavaScript
const ms = 1500;
const seconds = ms / 1000;
console.log(`${seconds}s`);Python
ms = 1500
seconds = ms / 1000
print(f"{seconds}s")PHP
$ms = 1500;
$seconds = $ms / 1000;
echo $seconds . "s";Common errors
| Issue | Explanation |
|---|---|
| Using seconds instead of milliseconds in JS | Many APIs expect milliseconds (e.g., Date.now()), while others use seconds. |
| Integer overflow | Large millisecond values can exceed JavaScript's Number precision. |
FAQ
- How many milliseconds are in a second?
- There are 1,000 milliseconds in one second.
- How do I convert milliseconds to minutes?
- Divide the milliseconds by 1000 to get seconds, then by 60 for minutes.
- Why does Date.now() return milliseconds?
- JavaScript uses milliseconds since the UNIX epoch for higher precision.
- Can a millisecond value be negative?
- Yes, values before 1 January 1970 are negative.
- What is the maximum safe millisecond timestamp in JS?
- JavaScript's Number can safely represent up to 2^53 - 1 milliseconds.