There are the following timer services:
| Service | Description |
| Cancel_Time_Out | Cancels a time out. |
| Get_Last_Updated_System_Time | Returns system time in milliseconds. |
| Get_Last_Updated_VM_Exec_Time | Returns execution time for virtual machine. |
| Get_System_Time | Returns system time in milliseconds. |
| Get_VM_Exec_Time | Returns execution time for virtual machine. |
| Set_Global_Time_Out | Sets a global time out. |
| Set_VM_Time_Out | Sets a time out for a virtual machine. |
| Update_System_Clock | Updates the system clock. |