Dateobjects and divide by the number of milliseconds in an hour to get the difference (in hours) between them.
const getHoursDiffBetweenDates = (dateInitial, dateFinal) => (dateFinal - dateInitial) / (1000 * 3600);
getHoursDiffBetweenDates( new Date('2021-04-24 10:25:00'), new Date('2021-04-25 10:25:00') ); // 24
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