running cron jobs

Hi,

I'm new to cron and I would like to know if this cron entry looks right.

Every monday to friday, at 9:15 AM execute the script called done_att.sh

Every monday to friday, at 3:15 PM execute the script called start_att.sh

15 09 * * /u54/jobs/done_att.sh
45 15 * * /u54/jobs/start_att.sh

Does this look correct? If not can you please advice on how to fix it?

Cheers,
Ted

15 09 * * 1-5 /u54/jobs/done_att.sh
45 15 * * 1-5 /u54/jobs/start_att.sh