Returns the seconds value in a Date object using Universal Coordinated Time (UTC).
The required dateObj reference is a Date object.
To get the number of seconds in local time, use the getSeconds method.
The getUTCSeconds method returns an integer between 0 and 59 indicating the seconds value of the indicated Date object. A zero occurs in two situations: the time is less than one second into the current minute, or a time was not stored in the Date object when the object was created. The only way to determine which situation you have is to also check the minutes and hours for zero values. If they are all zeroes, it is nearly certain that the time was not stored in the Date object.
The following example illustrates the use of the getUTCSeconds method.