Ada Programming/Libraries/Ada.Execution Time.Timers

is a unit of the Predefined Language Environment since Ada 2005.

Specification
Timer T     AdaTask_IdentificationTask_Id Timer_Handler    TM    Timer Min_Handler_Ceiling  SystemAny_Priority implementation_defined Set_Handler TM        Timer In_Time      AdaReal_TimeTime_Span Handler      Timer_Handler Set_Handler TM        Timer At_Time      CPU_Time Handler      Timer_Handler Current_Handler TM Timer  Timer_Handler Cancel_Handler TM              Timer Cancelled     Boolean Time_Remaining TM Timer  AdaReal_TimeTime_Span Timer_Resource_Error Import Ada Timer AdaExecution_TimeTimers

Wikibook

 * Ada Programming/Libraries/Ada