import HolyTime from 'holy-time'

HolyTime
  .in(4, 'days')
  .add(2, 'weeks')
  .subtract(4, 'minutes')
  .isWeekend()

HolyTime
  .between(
    HolyTime.add(HolyTime.startOf('day'), 2, 'hours'), 
    HolyTime.now()
  )
  .in('hours')

HolyTime.max(1666224000000, HolyTime.next('year'))

new HolyTime('2022-10-20')
  .isAfter(
    HolyTime.subtract(
      HolyTime.in(4, 'days'), 
      8, 'weeks'
    )
  )

HolyTime
  .duration(2, 'hours')
  .add(30, 'minutes')
  .in('seconds')