You can keep using your Hatch account like normal on public holidays in NZ, Aus or the US - but there can be delays in your deposits, withdrawals and orders you place for shares.
New Zealand and Australian public holidays
On New Zealand and Australian public holidays, banks are on holiday too. This means deposits and withdrawals around these dates may be delayed.
US public holidays
On US public holidays, US banks and share markets may be closed. If US banks are closed, deposits and withdrawals may be delayed. If the US share markets are closed, your buy and sell orders will stay pending in your Hatch account until they reopen the next business day.