Sorting by table column with dropdown in the header

I'm wondering if the following makes sense. Please note, splitting the information into separate columns is not an option due to too many columns. Column 1: there are more time stamps the column might be sorted by, but it can only be discovered by seeing the dropdown options. Column 2: all the information this column can be sorted by is available at a glance (Name Surname, Job title, Location, another item). Thank you.