public override DaylightTime GetDaylightChanges(int year)
{
if (year < 1 || year > 9999)
{
throw new ArgumentOutOfRangeException("year", year + Locale.GetText(" is not in a range between 1 and 9999."));
}
if (year == CurrentSystemTimeZone.this_year)
{
return(CurrentSystemTimeZone.this_year_dlt);
}
Hashtable cachedDaylightChanges = this.m_CachedDaylightChanges;
DaylightTime result;
lock (cachedDaylightChanges)
{
DaylightTime daylightTime = (DaylightTime)this.m_CachedDaylightChanges[year];
if (daylightTime == null)
{
long[] data;
string[] array;
if (!CurrentSystemTimeZone.GetTimeZoneData(year, out data, out array))
{
throw new ArgumentException(Locale.GetText("Can't get timezone data for " + year));
}
daylightTime = this.GetDaylightTimeFromData(data);
this.m_CachedDaylightChanges.Add(year, daylightTime);
}
result = daylightTime;
}
return(result);
}
internal CurrentSystemTimeZone(long lnow)
{
DateTime dateTime = new DateTime(lnow);
long[] array;
string[] array2;
if (!CurrentSystemTimeZone.GetTimeZoneData(dateTime.Year, out array, out array2))
{
throw new NotSupportedException(Locale.GetText("Can't get timezone name."));
}
this.m_standardName = Locale.GetText(array2[0]);
this.m_daylightName = Locale.GetText(array2[1]);
this.m_ticksOffset = array[2];
DaylightTime daylightTimeFromData = this.GetDaylightTimeFromData(array);
this.m_CachedDaylightChanges.Add(dateTime.Year, daylightTimeFromData);
this.OnDeserialization(daylightTimeFromData);
}
private void OnDeserialization(DaylightTime dlt)
{
if (dlt == null)
{
CurrentSystemTimeZone.this_year = DateTime.Now.Year;
long[] data;
string[] array;
if (!CurrentSystemTimeZone.GetTimeZoneData(CurrentSystemTimeZone.this_year, out data, out array))
{
throw new ArgumentException(Locale.GetText("Can't get timezone data for " + CurrentSystemTimeZone.this_year));
}
dlt = this.GetDaylightTimeFromData(data);
}
else
{
CurrentSystemTimeZone.this_year = dlt.Start.Year;
}
this.utcOffsetWithOutDLS = new TimeSpan(this.m_ticksOffset);
this.utcOffsetWithDLS = new TimeSpan(this.m_ticksOffset + dlt.Delta.Ticks);
CurrentSystemTimeZone.this_year_dlt = dlt;
}