如何使用.NET Timer类在特定时间触发事件？

I would like to have an event triggered in my app which runs continuously during the day at a certain time, say at 4:00pm. I thought about running the timer every second and when the time is equal to 4:00pm run the event. That works. But I'm wondering if there's a way to just get the callback once at 4:00pm and not having to keep checking.I would like to have an event triggered in my a