A term used to justify drinking before noon (since it is widely noted if you drink before noon you are an alcoholic). Beer light savings time equals whatever amount of hours needed to make your morning drinking equal noon.
ie: drinking at 8 am adding 4hrs of beer light savings time making it noon and therefore compliant with social standards of no drinking before noon.
Richard: You are an alcoholic, it is only 10:45 in the morning.
Jim: I am well aware of the time dick, however we are now in beer light savings time.