Run script at specific time

Greetings. I would like to know how you can make sure that at some specific time (for example, according to Moscow time) a certain script is executed. For example, something was added or removed from the database. The question can be asked very incorrectly – but I, unfortunately, do not know how to explain it in another way. Thanks in advance.

Answer 1, authority 100%

For Unix systems there is a cron daemon, for Windows systems there is a Task Scheduler.

Answer 2, authority 67%

Well, look in the search for the word, CRON