Can you show me how to subtract the current tick prom the previous tick of 30 minutes and return the answer. i appreciate any hints.

 
petertrov:

Can you show me how to subtract the current tick prom the previous tick of 30 minutes and return the answer. i appreciate any hints.

It's here:  https://www.mql5.com/en/forum/142394
 
Use this and you would have found that answered 2 days ago https://www.mql5.com/en/forum/142399
Reason: