01:00~one o'clock
01:00 am~one a m
01:00 a.m.~one a m
01:00 a.m~one a m
1 a.m.~one a m
23:00~twenty three o'clock
1:00 a.m.~one a m
1:00a.m.~one a m
1.59 p.m.~one fifty nine p m
01:59 p.m.~one fifty nine p m
1:59 p.m.~one fifty nine p m
1:59 p.m. est~one fifty nine p m e s t
1:59 p.m.est~one fifty nine p m e s t
1:59 p.m. e.s.t~one fifty nine p m e s t