It's showing open for registration for Feb 16, 23 — Mar 08, 23

But the date of the contest shown is Feb 22, 23.

What is the catch here?

https://icpc.global/regionals/upcoming!

Also, I am Indian so can I fill out the registrations for Other Asia Regions too? Except for the Asia West. And How many times ICPC occurs in Regions in a year?

Also suggest me some good blog link, which clears all doubts related to ICPC.