Dear Ruby List:

I'm trying to add one hr, to some time strings:

"1:12:00" --> "2:12:00"  (i don't need to worry about 24)

Mi first try was ...

"1:12:00".gsub(/(^\d?\w)/,$1.to_i.succ.to_s)

Now I know that if I do this, at the time of the replacement $1 will be 
empty.

could you illuminate myself with some ruby/intelligent way to achieve this ?


Thanks.