The predicted rapture came and went, leaving behind believers, non-believers and the Earth seemingly intact.
Harold Camping, an 89-year-old Oakland preacher and retired civil engineer, prophesied that judgment day would come Saturday starting at 6 p.m. in each time zone.
In anticipation of the apocalypse, some Christians drained their savings, visited family members thousands of miles away and prayed all day.
Some skeptics used doomsday as an excuse to drink. The group Pennsylvania Nonbelievers took to the Harrisburg streets and pub crawled until all the bars were closed.
There has been no comment from Camping.
According to ABC News, Camping was at his home in Oakland on Sunday and had no intention to speak or issue any statement Sunday or Monday.
ABC News said Camping's wife described him as being "somewhat bewildered" and "mystified" that events did not unfold on May 21 as Camping had predicted.
His previous rapture goof in 1994 was blamed on mathematical error.
Camping has built a multi-million-dollar Christian media empire that publicized his apocalyptic prediction.