Adjusted `Time` to support no-argument initialization
Adjusted `Time` to support no-argument initialization

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