Answer:
I run around the city but I never move.
I am a precious stone as clear as diamond. Seek me out while the sun's near the horizon. Though you can walk on water with my power try to keep me and I'll vanish in an hour.
The more you have of it the less you see. What is it?
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
What can you catch but never throw?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?