private static ProcessedTime processDST(ProcessedTime newTime, ProcessedTime oldTime)
{
ProcessedTime oldLocalTime = oldTime;
ProcessedTime newLocalTime = newTime;
oldLocalTime.Start = oldLocalTime.Start.ToLocalTime();
oldLocalTime.End = oldLocalTime.End.ToLocalTime();
newLocalTime.Start = newLocalTime.Start.ToLocalTime();
newLocalTime.End = newLocalTime.End.ToLocalTime();
oldLocalTime.StartDST = oldLocalTime.Start.IsDaylightSavingTime();
oldLocalTime.EndDST = oldLocalTime.End.IsDaylightSavingTime();
newLocalTime.StartDST = newLocalTime.Start.IsDaylightSavingTime();
newLocalTime.EndDST = newLocalTime.End.IsDaylightSavingTime();
if (newLocalTime.StartDST == true && oldLocalTime.StartDST == false)
{
newTime.Start = ChangeTime(newTime.Start, -1);
}
if (newLocalTime.EndDST == true && oldLocalTime.EndDST == false)
{
newTime.End = ChangeTime(newTime.End, -1);
}
if (newLocalTime.StartDST == false && oldLocalTime.StartDST == true)
{
newTime.Start = ChangeTime(newTime.Start, 1);
}
if (newLocalTime.EndDST == false && oldLocalTime.EndDST == true)
{
newTime.End = ChangeTime(newTime.End, 1);
}
return(newTime);
}
static void Main(string[] args)
{
DateTime now = DateTime.Now;
bool CurrentDST = now.IsDaylightSavingTime();
DateTime start = new DateTime(2021, 10, 31, 17, 0, 0).ToUniversalTime();
DateTime end = start.AddHours(7);
ProcessedTime newTime = SetNewTime(start, end);
}
private static ProcessedTime SetNewTime(DateTime start, DateTime end)
{
ProcessedTime oldTime = new ProcessedTime();
oldTime.End = end;
oldTime.Start = start;
ProcessedTime newTime = new ProcessedTime();
DateTime NewStart = start.AddDays(20);
DateTime NewEnd = end.AddDays(20);
newTime.Start = NewStart;
newTime.End = NewEnd;
newTime = processDST(newTime, oldTime);
return(newTime);
}