output of subtraction and addition

[jjb]

I was surprised to find that a duration is represented with a Tod::TimeOfDay. This seems semantically incorrect. It seems it should be either some sort of new class representing a period of time or just a float representing seconds, as is done in other libraries.

Would you be open to changing this behavior for the next major version release?

> noon = Tod::TimeOfDay.new(12)
> afternoon = Tod::TimeOfDay.new(14)
> d = afternoon-noon
=> #<Tod::TimeOfDay:0x0000000559f038 @hour=2, @minute=0, @second=0, @second_of_day=7200>
> d.to_i / 60 / 60
=> 2

[jackc]

Yeah, that looks weird to me now, too. Don't remember what the reason was. So I guess unless the original reason surfaces I'm open to changing in a next major version.