We don't work weekends. It is 5pm for me at 9am for you, but we also have engineers in California where it is only 2pm now. So, you will likely get support early in your day, before noon anyway and for us it will be the day before later in our day.
With people in vastly different time zones we usually like to get Skype contact information. That way you can see when we are both online and ping us with IM when you are available. This way even when there is a small window of overlap we can usually catch it.
Update the support incident with your Skype contact information and the engineer that takes that incident will add you to his contacts. Then look for him probably first thing in the morning on your Tuesday and you can coordinate a meeting at that time.