Filter based on date

Hi everyone.

I need to filter out data based on dates; my data has almost all dates from 2000 to 2019 for both start and end date columns in this form dd-mm-yyyy.

first column: start date: every date before 01.01.2018 should be included, any date after 01.01.2018 should be excluded. 

second column: end date: every date before 0.01.2018 should be excluded, all else included.

How can I do that? 

Thank you.