Clock shifts are usually scheduled near a weekend midnight to lessen disruption to weekday schedules. A one-hour shift is customary, but Australia's Lord Howe Island uses a half-hour shift. Twenty-minute and two-hour shifts have been used in the past.
What do we avoid disrupting by doing the time shift during days most people don't work?
{'text': 'weekday schedules', 'answer_start': 83}