They both transmit visible radiation to an object because they are both transparent in the visible band, and they both absorb the re-radiated thermal energy from that object when it comes back because they are both not transparent in the thermal band. I'm not here to give you a basic grounding in the fundamentals of physics.
Your position that greenhouse gases don't contribute to increased planetary surface temperatures during the day is at a flat-earther level of science denial.
But you don't have to understand how it works. You can just look at Venus and Mercury to see that it does work. The surface of Venus is 50C hotter than the day-side surface of Mercury, even though Mercury is 50 million km closer. Why? Because the greenhouse gases in Venus's atmosphere are capture heat and increase the planetary surface temperature both during the day and during the night.
