import format from 'date-fns/format' ; import * as dateFns from 'date-fns' ; const date = dateFns . addDays ( new Date ( 2017 , 0 , 25 , 21 , 28 , 15 ) , 1 ) ; const result = format ( date , 'dd.MM.yyyy HH:mm:ss' ) ; console . log ( result === '26.01.2017 21:28:15' ) ;