What's the correct job time limit specification for jobs to LSF

What is the correct way to specify how long a job can run on a computer cluster using LSF as the resource manager/ job scheduler? LSF is a job scheduler that computing clusters use to allocate resources and decide when a job that users submit gets run and how it gets run. Based on IBM's knowledge base , can I do the following if I needed 5 days? busb -We 120:00