Provide convenience function for constructing `Clock` values from simple strings.
Provide convenience function for constructing `Clock` values
from simple strings.

BurntSushi/nfldb,codeaudit/nfldb,codeaudit/nfldb,verdimrc/nfldb,BurntSushi/nfldb,bparafina/nfldb,bparafina/nfldb,nivertech/nfldb,nivertech/nfldb,verdimrc/nfldb