Trouble scheduling tasks

Is anyone else having a problem scheduling tasks for certain days? I made one for cleaning my bathroom, and I tried scheduling it for tomorrow. I pressed the clock icon at the bottom, then I tried pressing the arrow next to "Date". It didn't work. Same thing when I tried pressing the little button next to "Time". I can't even press "clear" to exit. Maybe I'm just not pressing them hard enough? All I know is it's annoying and I have no idea how to fix it.