How do I make my specific item on my todo list on weekdays its on (3:35pm) and weekends its on (1:00pm_
unfortunately, that's not possible right now, but we may consider adding more complex recurrence syntax in the future. You're welcome to add your vote for this request in our Votebox: http://todoist.com/Vote/showProposal/22/
For now, as a workaround, you can set up 2 tasks with the same name and schedule one of them to:
every weekday at 3:35pm
and the other one to:
every Sat, Sun at 1:00pm
During the weekdays, you can check off the first one and the second one during the weekend, but if both have the same name, it will appear on your 7 days list as if it was the same task.