Could you explain the 'created_before' paramter's exact range one of the getorder's paramters

I have read about 'GetOrders' api desc.

and I'm qurious about the 'created_before' paramter's exact range.

If i set the value of the 'created_before' parameter as '2023-05-23 13:00:00'

then I can get the Orders information that have been created until '2023-05-23 13:00:00' ?

not or I can get the Orders information that have been created until '2023-05-23 12:59:59' ?

I'm confused because the description of the 'created_before' parameter is Filter orders by those updated before specific time.

I have focused the preposition 'before'.

And this situation is same as the 'create_after' parameter.

a Value of The 'create_after' parameter includes the value that I set it or not?

Please explain the exact datetime range.