remainingSeconds static method

int remainingSeconds({
  1. int interval = 30,
})

There is a method that will tell you how much time remains in the current time step window in seconds. Interval is your TOTP function interval value (default = 30)

Implementation

static int remainingSeconds({int interval = 30}) {
  return interval - (((lastUsedTime ~/ 1000).round()) % interval).floor();
}