you can apply schedule through
workflow ----> scheduler
In this scheduler you can click "new" and give the schedule timings ,whether need to run continously,,,etc..
This will schedule the workflow according to the timings you given.
Hope this will help you.
link for schedule
Informatica workflow can be scheduled in various ways. Listed below the popular schedulers used in many projects,
1) Cron Tab
2) Informatica Scheduler
3) Control M
Please let me know if you need more inside on this.