public string SayHello(DateTime dateTime, string user)
{
string result;
var calendar = new TaiwanCalendar();
var hour = calendar.GetHour(dateTime);
if (hour >= 6 && hour < 12)
{
result = "Good morning!";
}
else if (hour >= 6 && hour < 19)
{
result = "Good afternoon!";
}
else
{
result = "Good night!";
}
result = "Hi, " + user + ". " + result;
return(result);
}