I need to set the date as 2nd monday of a month every year for a timer

i have a requirement where i need to notify the user with an email to start the case of a process. I need to set the date as 2nd monday of a month every year. how can i achieve that? I am using a timer start event in the beginning of the process. how can i configure the time as required?

In timer event properties, we can set the particular day for every year but not the random day as "2nd monday".

please provide your suggestions on it.

thanks.