Commercial banks have dumped their traditional openings hours of 9 a.m. to 4 p.m. and adopted more flexible hours based on demand.
One branch by Seoul's Gangnam area opens at noon and closes at 7 p.m. on the assumption that mornings are not that busy but afternoons and evenings attract a high floating population.
Another branch even opens on Sundays for foreigners who wish to send money abroad, open accounts or change their Korean won into foreign currency.
Another key factor is the widespread use of internet banking, which has fueled the rise of online-only banks that offer 24-hour service. Banks have therefore adjusted the operating hours of branches based on a given area's demand.
KB Kookmin Bank on Sunday announced that from Monday, five branches in major districts in Seoul will open from 9 a.m. to 7 p.m. and another four offer after-hours services from 10 a.m. to 5 p.m. or noon to 7 p.m.
KB will run 47 branches with flexible business hours, accounting for 4.4 percent of the bank's total.
A KB source said, "Last month's strike led to the absence of 30 percent of staff, but ultimately both labor and management were embarrassed because the feared crippling of operations never materialized."