NSDateComponentsを使って年月日のみを有効にします。
[sourcecode language=”cpp”]
GDataEntryCalendarEvent *newEvent = [GDataEntryCalendarEvent calendarEvent];
GDataDateTime *startDateTime = [GDataDateTime dateTimeWithDate:salesDate
timeZone:[NSTimeZone systemTimeZone]];
unsigned unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit;
NSDateComponents *comps = [[NSCalendar currentCalendar] components:unitFlags fromDate:salesDate];
[startDateTime setDateComponents:comps];
GDataWhen *when = [GDataWhen whenWithStartTime:startDateTime
endTime:nil];
[newEvent addTime:when];
[/sourcecode]