differenceInDays
import { differenceInDays } from "https://esm.sh/v135/date-fns@3.6.0/index.d.mts";@example
// How many full days are between
// 2 July 2011 23:00:00 and 2 July 2012 00:00:00?
const result = differenceInDays(
new Date(2012, 6, 2, 0, 0),
new Date(2011, 6, 2, 23, 0)
)
//=> 365
@example
// How many full days are between
// 2 July 2011 23:59:00 and 3 July 2011 00:01:00?
const result = differenceInDays(
new Date(2011, 6, 3, 0, 1),
new Date(2011, 6, 2, 23, 59)
)
//=> 0
@example
// How many full days are between
// 1 March 2020 0:00 and 1 June 2020 0:00 ?
// Note: because local time is used, the
// result will always be 92 days, even in
// time zones where DST starts and the
// period has only 92*24-1 hours.
const result = differenceInDays(
new Date(2020, 5, 1),
new Date(2020, 2, 1)
)
//=> 92
function differenceInDays<DateType extends Date>(dateLeft: DateType | number | string, dateRight: DateType | number | string): number;