The National Bank of Solomon Islands has suspended Saturday trading to cut back on costs.
The bank's managing director Peter Goodwin says the cost of doing business for 70,000 clients is escalating.
Mr Goodwin says the bank is still committed to providing service to the people opening half an hour earlier every day, than its other two competitors.
The SIBC reports the National Bank provides the only banking service for rural areas.
He says last months riots and the looting and burning down of business contributed to the Bank's decision to close at weekends