Definition of overtimes:
(n) :
(uncountable) Working time outside of one's regular hours.
(n) :
(uncountable) The rate of pay, usually higher, for work done outside of or in addition to regular hours.
(n) :
(sports, countable, US) An extra period of play when a contest has a tie score at the end of regulation.
(adv) :
Exceeding regular working hours.
(n) :
A period of time longer than scheduled.
(adv) :
Beyond the normal or usual extent.