Returns the current time in milliseconds. Note that
while the unit of time of the return value is a millisecond,
the granularity of the value depends on the underlying
operating system and may be larger. For example, many
operating systems measure time in units of tens of
milliseconds.
<p> See the description of the class {@code Date} for
a discussion of slight discrepancies that may arise between
"computer time" and coordinated universal time (UTC).
@return the difference, measured in milliseconds, between
the current time and midnight, January 1, 1970 UTC.
Returns the current time in milliseconds. Note that while the unit of time of the return value is a millisecond, the granularity of the value depends on the underlying operating system and may be larger. For example, many operating systems measure time in units of tens of milliseconds.
<p> See the description of the class {@code Date} for a discussion of slight discrepancies that may arise between "computer time" and coordinated universal time (UTC).
@return the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC.