24-hour rotating shift is 7am - 3pm, 3pm - 11pm, 11pm - 7am,
like factories, support centres and airport.
good thing is u get to work 8 hours inclusive of breaks, while
others may work longer than that cos some companies (esp private
sector) work 8 to 5 or 9 to 6, which is 8+1 hours to squeeze the
max out of u.
bad thing is the weird hours.
on the IT support side, more common is 12 hours shift for two days
followed by two days' rest. this 12 hours may or may not be in the
wee hours. they usually stand by and be able to react to any
downtime or network disruptions, but due to the JLB nature of their
work, their pay is not high for their qualification than their
peers.
as for ATC controllers, it's 1 day's work 2 days' off. but expect
it to be quite tiring anyway, and the pay will range from 2k for
newbie graduate to 2.8k for experienced ones. no career advancement
path too.