How to set the date of loading the quote history from the current hour to 72 hours ago.

borfor:

Hello,  

I think the question is very primitive, but it does not work.

There is a script for MT5 that loads the history of quotes for the specified dates to the file. But you need a history of quotes only for the last 72 hours and do not want to change the dates every hour.

Here is the original script

input datetime            start_date     = D’01.10.2018′; // Start Date

input datetime            end_date       = D’01.10.2019′; // End Date

As I logically understand it, start_date is equal to the current date, and end_date = start_date + 72 hours.

Please tell me how to write it.

end_date = start_date + 72*3600