Time Calculator: Add, Subtract

Excellent calculator for small business

You can’t even subtract a time period from a set time unless you buy the pro version. I knew the free version would have ads and probably some features would be locked. But I still expected the free version to have all of the BASIC functionality of a “time calculator” (i.e., add AND subtract time).

I used to be able to add between two different times. And now each time I go and use it it keeps saying invalid start time when it never did that before. And it’s only when I paid for the full version so I don’t understand how now all of a sudden it’s not working. I want my money back and I’ll take the free version again because at least the free version actually worked. Update: I’m thought I’d give it another shot but, it STILL DOESNT WORK