如何在两个日期时间值之间减去MYSQL中的SQL并在几分钟或几秒内检索结果?

I want to subtract between two date time values using SQL in MySQL such that I get the interval in minutes or seconds. Any ideas? I want to run a SQL query that retrieves uses from a database who have logged in like 10 minutes from the time.I want to subtract between two date time values