Looking for an app for...tracking how much of my day I spend on different areas

Sesame

I found some time tracking apps but they are not what I need and I think what I'm looking for is something really simple.

My boss wants to know how long I spend on different areas at work. There's about about 6 to 8 categories.
Is there an app where I can have a start/stop button next to each category and then I can see at a glance at the end of each day/week, how much time I spend on each category.

I've just wasted an hour googling this and can't find something basic enough. Is there something out there?

Mr E

How about something like this?

https://play.google.com/store/apps/details?id=com.intervaltimerfree.app

Look at the 4th screenshot.

Edit: Another option:

https://play.google.com/store/apps/details?id=com.jee.timer

Lucas Hood

Doesn't google maps do this for you already?

Sesame

Not physically different areas! Different business areas. But it could also be useful for someone tracking their day to find out how much time they spend at work, cooking, cleaning, etc.
Thanks Mr E will check it now.