Magento reacts to Client time

Question

Our client bought Order Delivery Date Magento 2 Module. Thanks for the good module!

Our QA partner found that the delivery date calendar on checkout reacts to the client time on his PC. So it is currently possible for a customer to set his computer time for 2 hours back and place an order for the next day delivery.

Answer:

To fix this issue to let Magento calendar use the timezone (as its config http://www.awesomescreenshot.com/09b6b4cbf5 ), could you please try to replace 2 js files of Magento by the attachments?

the paths are:

/lib/web/mage/calendar.js/

lib/web/jquery/jquery-ui.js

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