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Using Duration with Diff

You can also use duration with dayjs#diff to get the duration between two date times. To do so, simply pass the dayjs#diff method into dayjs#duration as follows:

var x = dayjs()
var y = dayjs()

var duration = dayjs.duration(x.diff(y))
// returns duration object with the duration between x and y

See here for more information about dayjs#diff.