use utcnow instead of now [docs only]
use utcnow instead of now [docs only]

funbaker/astropy,funbaker/astropy,mhvk/astropy,MSeifert04/astropy,mhvk/astropy,mhvk/astropy,DougBurke/astropy,saimn/astropy,astropy/astropy,funbaker/astropy,lpsinger/astropy,funbaker/astropy,dhomeier/astropy,astropy/astropy,pllim/astropy,DougBurke/astropy,pllim/astropy,aleksandr-bakanov/astropy,mhvk/astropy,aleksandr-bakanov/astropy,bsipocz/astropy,bsipocz/astropy,stargaser/astropy,lpsinger/astropy,pllim/astropy,dhomeier/astropy,bsipocz/astropy,MSeifert04/astropy,dhomeier/astropy,larrybradley/astropy,astropy/astropy,bsipocz/astropy,DougBurke/astropy,MSeifert04/astropy,larrybradley/astropy,StuartLittlefair/astropy,stargaser/astropy,aleksandr-bakanov/astropy,astropy/astropy,MSeifert04/astropy,StuartLittlefair/astropy,mhvk/astropy,StuartLittlefair/astropy,saimn/astropy,dhomeier/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,dhomeier/astropy,stargaser/astropy,lpsinger/astropy,stargaser/astropy,astropy/astropy,lpsinger/astropy,saimn/astropy,lpsinger/astropy,larrybradley/astropy,pllim/astropy,DougBurke/astropy,saimn/astropy,larrybradley/astropy,saimn/astropy,aleksandr-bakanov/astropy,larrybradley/astropy,pllim/astropy