A SOAP message that will retrieve a conference room's schedule for the day in Exchange 2010.

conferenceroom_schedule_SOAP_message.mm

// for some reason, Exchange Web Services seems to ignore the DST-specific bias settings, and only refer to the 
// master bias.
// set the master bias here.
int bias = abs([[NSTimeZone systemTimeZone] secondsFromGMT] / 60);
    
NSString *soapMessage = [NSString stringWithFormat:@""
                         @"<?xml version=\"1.0\" encoding=\"utf-8\"?>"
                         @"<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:t=\"http://schemas.microsoft.com/exchange/services/2006/types\">"
                         @"<soap:Body>"
                         @"<GetUserAvailabilityRequest xmlns=\"http://schemas.microsoft.com/exchange/services/2006/messages\" xmlns:t=\"http://schemas.microsoft.com/exchange/services/2006/types\">"
                         @"<t:TimeZone xmlns=\"http://schemas.microsoft.com/exchange/services/2006/types\">"
                         @"<Bias>%i</Bias>"
                         @"<StandardTime>"
                         @"<Bias>0</Bias>"
                         @"<Time>02:00:00</Time>"
                         @"<DayOrder>3</DayOrder>"
                         @"<Month>11</Month>"
                         @"<DayOfWeek>Sunday</DayOfWeek>"
                         @"</StandardTime>"
                         @"<DaylightTime>"
                         @"<Bias>-60</Bias>"
                         @"<Time>02:00:00</Time>"
                         @"<DayOrder>3</DayOrder>"
                         @"<Month>3</Month>"
                         @"<DayOfWeek>Sunday</DayOfWeek>"
                         @"</DaylightTime>"
                         @"</t:TimeZone>"
                         @"<MailboxDataArray>"
                         @"<t:MailboxData>"
                         @"<t:Email>"
                         @"<t:Address>%@</t:Address>"
                         @"</t:Email>"
                         @"<t:AttendeeType>Required</t:AttendeeType>"
                         @"<t:ExcludeConflicts>false</t:ExcludeConflicts>"
                         @"</t:MailboxData>"
                         @"</MailboxDataArray>"
                         @"<t:FreeBusyViewOptions>"
                         @"<t:TimeWindow>"
                         @"<t:StartTime>%@T00:00:00</t:StartTime>"
                         @"<t:EndTime>%@T23:59:59</t:EndTime>"
                         @"</t:TimeWindow>"
                         @"<t:MergedFreeBusyIntervalInMinutes>60</t:MergedFreeBusyIntervalInMinutes>"
                         @"<t:RequestedView>Detailed</t:RequestedView>"
                         @"</t:FreeBusyViewOptions>"
                         @"</GetUserAvailabilityRequest>"
                         @"</soap:Body>"
                         @"</soap:Envelope>"
                         @"", bias, room, date, date];