Can we get a TIMER for each Adobe software? (Ex. You've spent 3420 hours in Premiere)

That's a quite useless information. I start a program, stop working because I have a meeting and start working again after the meeting. You can't also take the CPU time used as I could make some thinking in between. I could switch from Indesign to Photoshop or Illustrator or both, to do clean-up work...

But if you really want a feature like that, look into an OS accounting program. Mainframes at the time had that, as it was primordial to bill resources used to the different departments.

Sounds interesting! You should fill out the Feature Request/Bug Report Form 

There are many software/work flow timing software packages available via third party.

Many companies use this type of software for billing purposes. It can give you a total time, but not a granular level.

This is a public forum with "some" Adobe staff participation, use the links below to make a report or request

-for Video & Audio & Animator programs https://adobe-video.uservoice.com/

-https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform

-or Feedback forum https://forums.adobe.com/community/creative_cloud/desktop-app/content

Or find a free timer to download from an open source site

I wouldn't be surprised if there's already an internal timer in the software: knowing how much time their customers spend on the different apps would be invaluable to Adobe!

Until this becomes a feature, invest in a stop watch or one of those chess clocks.