The date is: 13 of October 2020 .. so a year from now I’d say.
Please check Microsoft Product Cycle from this link, Here
And you can search for whatever Microsoft Products to see the end supported date.
Note that If you still have SharePoint 2010 Farm, start planning for Migration and honestly speaking just go to SharePoint 2019. and use the new Modern Experience; in which I will write about in a new post.
Unfortunately no direct migration, you still have to go to SP2013 then 2016 and finally 2019.
You will see Servers for each farm, you can use Azure VMs temp for migration that will help you to reduce Servers cost unless you have the resources on-premises.
Also I will write how to plan for your migration.
Hope that helps.