2 weeks lead-time, so when is this? Well this little application will tell you.
Just enter the lead-time that has been given to you and click and all the hard work is done for you. Lead-time calculated taking into account both business days and holidays in both origin and destination countries.
Want to store, edit, add to calendar and get notifications, well it does all that too. Once the app has completed your estimate calculation, you can save your entry.