There are a specific time to do Haj in a year. But we can do Umrah in almost every day of a year. I want to know is there any dates that we can not do Haj & Umrah.

There are a specific time to do Haj in a year. But we can do Umrah in almost every day of a year. I want to know is there any dates that we cannot do Haj & Umrah.