inMilliseconds property
The number of whole milliseconds spanned by this Duration.
The returned value can be greater than 999. For example, a duration of nine seconds and 123 milliseconds has 9125 milliseconds.
const duration = Duration(seconds: 9, milliseconds: 123);
print(duration.inMilliseconds); // 9123 = 9 * 1000 + 123
Implementation
int get inMilliseconds =>
inMicroseconds ~/ Duration.microsecondsPerMillisecond;