Current Time
When a key is selected you can see its time value here. You can toggle between frames and seconds with the Alt + F and Alt + T shortcuts.
Parameter Value
When a key is selected you can see its parameter value here.
Pointer: F
This is the current frame at the mouse pointer's position.
Pointer: TC
This is the current time in seconds at the mouse pointer's position.
Pointer: y
This is the current Y value (= parameter value) at the mouse pointer's position.
Pointer: f(x)
This is the current Y value as a function of time at the mouse pointer's position.