isExpired method
DATE FORMAT date: d dd month: M MM MMM MMMM year: yy yyyy hour: HH minute: mm second: ss
Implementation
bool isExpired(int dateInMilliSecond) {
var now = DateTime.now();
var diff =
now.difference(DateTime.fromMillisecondsSinceEpoch(dateInMilliSecond)) *
-1;
if (diff.inSeconds > 0) return false;
return true;
}