h6. [[Programmer's Reference Manuals]] h6(. » [[List of modules]] h6((. » RTC The RTC module was introduced in RISC OS 5.21. It acts as a common point of access to the hardware RTC. The module is also in charge of any fine-tuning of the clock. The default behaviour is to keep the soft clock synchronised to the hardware RTC, but software can use the [[RTC_Adjust]] SWI to request other corrections. Internally, the module uses a [[HALDeviceSysPeri_RTC|RTC HAL device]] in order to communicate with the RTC hardware. h4. Details * [[RTC Service Calls|Service Calls]] * [[RTC SWI Calls|SWI Calls]] h4. See Also * [[NetTime]] * [[HALDeviceSysPeri_RTC|RTC HAL device (HALDeviceSysPeri_RTC)]]