Unix Milliseconds to Date Converter
Convert a Unix timestamp in milliseconds into a readable UTC date and time.
How to use Unix Milliseconds to Date Converter
1. Enter Unix Milliseconds. 2. Whole signed timestamps within the ECMAScript Date range ±8,640,000,000,000,000 milliseconds; Z denotes UTC. 3. Select Convert or press Enter. 4. Select Copy result to copy the answer, or Reset to clear the form and result.
Why use this tool?
Whole signed timestamps within the ECMAScript Date range ±8,640,000,000,000,000 milliseconds; Z denotes UTC.
How the calculation works
Convert signed epoch milliseconds to an ISO UTC timestamp. Whole signed timestamps within the ECMAScript Date range ±8,640,000,000,000,000 milliseconds; Z denotes UTC. Counts and dimensions use the declared rounding convention; other numbers display up to three decimal places where applicable. Nonzero subsecond durations are labelled. Durations round to the nearest second; nonzero subsecond durations are labelled. File-size output units are decimal. Changing an input label does not convert filled values.
Example
Worked example: Unix Milliseconds = 0. Result: 1970-01-01T00:00:00.000Z.
Practical tip
Check the input labels and assumptions against the unix milliseconds to date task before reusing the number.
Frequently asked questions
What exactly does Unix Milliseconds to Date Converter calculate?
Convert signed epoch milliseconds to an ISO UTC timestamp.
Which units or counting rules apply?
Whole signed timestamps within the ECMAScript Date range ±8,640,000,000,000,000 milliseconds; Z denotes UTC.
Does this inspect, change or upload my files?
This page calculates the entered values or text in the browser. Numeric image/media tools do not transform files. Check the worked example and stated counting basis; the result does not certify device, search-engine or accessibility outcomes.