JavaScript UTC() Method
 Complete Date Object Reference
Definition and Usage
The UTC() method takes a date and returns the number of milliseconds
since midnight of January 1, 1970 according to universal time.
Syntax
Date.UTC(year,month,day,hours,minutes,seconds,ms)
|
| Parameter |
Description |
| year |
Required. A four digit number representing the year |
| month |
Required. An integer between 0 and 11 representing the
month |
| day |
Required. An integer between 1 and 31 representing the date |
| hours |
Optional. An integer between 0 and 23 representing the hour |
| minutes |
Optional. An integer between 0 and 59 representing the
minutes |
| seconds |
Optional. An integer between 0 and 59 representing the
seconds |
| ms |
Optional. An integer between 0 and 999 representing the
milliseconds |
Example 1
In this example we will get how many milliseconds there are from 1970/01/01
to 2005/07/08 according to universal time:
<script type="text/javascript">
var d = Date.UTC(2005,7,8);
document.write(d);
</script>
|
The output of the code above will be:
Example 2
Now we will convert the output from the example above into years:
<script type="text/javascript">
var minutes = 1000 * 60;
var hours = minutes * 60;
var days = hours * 24;
var years = days * 365;
var t = Date.UTC(2005,7,8);
var y = t/years;
document.write("It's been: " + y + " years from 1970/01/01");
document.write(" to 2005/07/08!");
</script>
|
The output of the code above will be:
It's been: 35.62465753424657 years from 1970/01/01 to 2005/07/08!
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Try-It-Yourself Demos
UTC()
Use UTC() to print the milliseconds from 1970/01/01 to a specified date
(according to universal time).
Complete Date Object Reference
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