Dynadotヘルプ

Dynadot is one of the few registrars that supports domain grace deletions; however, we can not guarantee that any domain will be able to be grace deleted. In the case of .IM, the 中央レジストリ sets the registration date to the start of the day. This means, if you register a domain towards the end of the day, you could lose some of your grace deletion hours。