FME Timer function?

There is a Decelerator Transformer, but I'm unsure of the maximum amount of time you can pause a function--it is measured out in seconds.

If you are using the .bat code created in fme, you could modify it to add a pause between workflows. Again, measured in seconds.

Pausing for an hour between transformers seems excessive--how many transformers do you have to iterate through?

I like the Decelerator Transformer option that @MaryBeth suggested. It's probably the most straight-forward.

Another option, would be the Python Caller Transformer and incorporate the sleep function in the time module. Something like this:

import time
time.sleep(3600)

You can read about the time module here.