double time
noun [ U ] uk/ˌdʌb.əl ˈtaɪm/ us/ˌdʌb.əl ˈtaɪm/
(WORK)
（通常指因周末或法定假日加班而获得的）双倍工资
If you are paid double time, you are paid twice the usual amount for the time that you spend working, usually because you are working at the weekend or on an official holiday. If you work double time, you work twice as long as normal.