anno lucis
adverb
an·no lu·cis
-ˈlüsə̇s,
-ük-
often capitalized A&L
—used by many Freemasons with a year to indicate the number of years elapsed since 4000 b.c. 4000 being added to the usual computation of the year
a.d. 1980 is Anno Lucis 5980
—abbreviation A.L. often printed in small capitals 
Word History
Etymology
New Latin, in the year of light; from the conception that God's word creating light in Genesis 1:3 marks the beginning of creation
First Known Use
1776, in the meaning defined above