You can't base a macro directly off time of day, but for what you are describing there is only one way I can see for you to do it.

The MX980 does have record timers, this is the key. I would make a hidden device and on a page create 2 buttons. Call them "Before 5" and "After 5". Create a new variable called "After 5". Make your "Before 5" button set the "After 5" variable to FALSE. Make the "After 5" button set the "After 5" Variable to TRUE.

Under tools select Record Timers. Create a timer that will execute at 5:00 PM and alias your "After 5" Button. Create a timer for sometime in the AM that will alias "Before 5"

Now your "After 5" variable will be TRUE after 5PM and FALSE whenever you set the other timer in the AM.

Now add and IF THEN based on this variable that can adjust lights accordingly.

EDIT: You may pick more neutral names for your buttons and variables so you can adjust your Record Timers as sunrise and sunset change and not confuse the situation by using specific times on button names or variables. Maybe Call the variable NIGHT and the buttons NIGHT ON and NIGHT OFF