User Activity

I have a Canon EOS 80D and would like to purchase a speedlite for it.  Can anyone tell me what models work with ths?  I am having no luck pinning down what will work.  Thanks for any help!
I live in Tennessee, can anyone tell me what place you would set for the time zone on a Canon EOS 80D?
I have a Canon EOS Rebel T5.  I'm looking at purchasing the Canon EF-S 60mm f/2.8 Macro USM Fixed Lens. Does anyone in the community have & use this lens.  Looking for any info & experiences with this lens.  Thanks for any help.
I have a Canon EOS Rebel T5 & an older Canon EOS Rebel SLR camera.  My question is whether is is advisable to use the lenses from my older Rebel on the newer Rebel T5 & whether the external flash from the older Rebel can be used on the newer Rebel T5...