public static bool IsBetween(this DateTime dateTime, Time startTime, Time endTime) {
    var currentTime = dateTime.TimeOfTheDay();
    // If startTime and endTime are equal, consider it as covering the entire day
    if (startTime.Equals(endTime)) {
        return true;
    }
    //start time is lesser or equal than end time
    if (startTime.CompareTo(endTime) <= 0) {
        //currentTime should be between start time and end time
        if (currentTime.CompareTo(startTime) >= 0 && currentTime.CompareTo(endTime) <= 0) {
            return true;
        }
        return false;
    } else {
        //currentTime should be between end time time and start time
        if (currentTime.CompareTo(startTime) >= 0 || currentTime.CompareTo(endTime) <= 0) {
            return true;
        }
        return false;
    }
}