moment by moment; hour by hour; with each passing moment
Describes a situation that changes or progresses continuously as time passes, often with a sense of urgency or steady development.
The situation is changing moment by moment.
I'm panicking as the deadline approaches hour by hour.
Non-repetition kanji variant; less common than 刻々に.
Reduplication of 刻 (こく, 'moment') with the adverbial particle に. The reading こっこく results from gemination (促音便) of the first く.