Synchronizing timing sources in computing devices

A device for synchronizing multiple timing sources, comprising:

• a memory storing one or more parameters or instructions for maintaining the multiple timing sources;
• and
• at least one processor coupled to the memory, wherein the at least one processor is configured to:
• maintain at least a first clock associated with a first timing source and a second clock associated with a second timing source;
• receive, from an application, a request for an indication of a difference in values between the first clock and the second clock;
• determine, at an instance of a reoccurring event in a domain of one of the first timing source or the second timing source, a first elapsed time of the first clock and a second elapsed time of the second clock from a previous instance of an event, wherein the reoccurring event relates to a register overflow of a value of the first clock or the second clock;
• and
• provide, to the application and in response to the request, the indication related to the first elapsed time and the second elapsed time.

A non-transitory computer-readable medium, comprising code executable by one or more processors for synchronizing multiple timing sources in a computing device, the code comprising code for:

• maintaining, by the computing device, at least a first clock associated with a first timing source and a second clock associated with a second timing source;
• receiving, from an application, a request for an indication of a difference in values between the first clock and the second clock;
• determining, by the computing device and at an instance of a reoccurring event in a domain of one of the first timing source or the second timing source, a first elapsed time of the first clock and a second elapsed time of the second clock from a previous instance of an event, wherein the reoccurring event relates to a register overflow of a value of the first clock or the second clock;
• and
• providing, to the application and in response to the request, the indication related to the first elapsed time and the second elapsed time.