that's at one o'clock
that at one o'clock
pro:dem prep det:num n
that's at one o'clock .
ð æ t s WORD_BOUNDARY æ t WORD_BOUNDARY w ʌ n WORD_BOUNDARY ə k l ɑː k WORD_BOUNDARY
t h a t ' s WORD_BOUNDARY a t WORD_BOUNDARY o n e WORD_BOUNDARY o ' c l o c k WORD_BOUNDARY