private void ConvertToExTimeZone()
{
ExTimeZoneInformation exTimeZoneInformation = new ExTimeZoneInformation("tzone://Microsoft/Custom", this.name);
exTimeZoneInformation.AlternativeId = this.id;
if (this.transitions.Transitions[0].GetType() != typeof(TimeZoneDefinition.Transition))
{
throw new TimeZoneException((Strings.IDs) 3332140560U, this.transitions, this.transitions.Transitions[0]);
}
for (int i = 0; i < this.transitions.Transitions.Length; i++)
{
DateTime?endTransition;
if (i != this.transitions.Transitions.Length - 1)
{
TimeZoneDefinition.AbsoluteDateTransition absoluteDateTransition = this.transitions.Transitions[i + 1] as TimeZoneDefinition.AbsoluteDateTransition;
if (absoluteDateTransition == null)
{
throw new TimeZoneException((Strings.IDs) 3644766027U, this.transitions, this.transitions.Transitions[i + 1]);
}
endTransition = new DateTime?(absoluteDateTransition.DateTime);
}
else
{
endTransition = null;
}
ExTimeZoneRuleGroup exTimeZoneRuleGroup = new ExTimeZoneRuleGroup(endTransition);
this.AddRulesToRuleGroup(exTimeZoneRuleGroup, this.transitions.Transitions[i], this.transitions);
if (exTimeZoneRuleGroup.Rules.Count != 0)
{
exTimeZoneInformation.AddGroup(exTimeZoneRuleGroup);
}
}
try
{
this.timeZone = new ExTimeZone(exTimeZoneInformation);
}
catch (ArgumentException exception)
{
throw new TimeZoneException(exception);
}
catch (NotImplementedException exception2)
{
throw new TimeZoneException(exception2);
}
catch (InvalidOperationException exception3)
{
throw new TimeZoneException(exception3);
}
}
private static ExTimeZone LoadGmtTimeZone()
{
ExTimeZone result;
if (!ExTimeZoneEnumerator.Instance.TryGetTimeZoneByName("Greenwich Standard Time", out result))
{
ExTimeZoneInformation exTimeZoneInformation = new ExTimeZoneInformation("Greenwich Standard Time", "Greenwich Standard Time");
ExTimeZoneRuleGroup exTimeZoneRuleGroup = new ExTimeZoneRuleGroup(null);
ExTimeZoneRule ruleInfo = new ExTimeZoneRule("Standard", "Standard", new TimeSpan(0L), null);
exTimeZoneRuleGroup.AddRule(ruleInfo);
exTimeZoneInformation.AddGroup(exTimeZoneRuleGroup);
result = new ExTimeZone(exTimeZoneInformation);
}
return(result);
}