Prior to Json.NET 4.5 dates were written using the Microsoft format: "/Date(1198908717056)/". If your server sends date in this format you can use the below code to serialize it to NSDate:
(NSDate*) getDateFromJSON:(NSString *)dateString { // Expect date in this format "/Date(1268123281843)/" int startPos = [dateString rangeOfString:@"("].location+1; int endPos = [dateString rangeOfString:@")"].location; NSRange range = NSMakeRange(startPos,endPos-startPos); unsigned long long milliseconds = [[dateString substringWithRange:range] longLongValue]; NSLog(@"%llu",milliseconds); NSTimeInterval interval = milliseconds/1000; NSDate *date = [NSDate dateWithTimeIntervalSince1970:interval]; // add code for date formatter if need NSDate in specific format. return date; }