свойство microsecond

int microsecond

Микросекунда 0...999.

DateTime moonLanding = DateTime.parse("1969-07-20 20:18:00");
assert(moonLanding.microsecond == 0);

Исходный код

external int get microsecond;

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-core/DateTime/microsecond.html