The PVR backend (as the server side part), which directly communicates with a TV tuner adapter(s) to receive the Live TV signals and create a video or audio stream, and also record to files.
1. Convert time between hour, minute, second, or day with conversion factor. As we known, 1 hour = 60 minutes = 3600 seconds =1/24 day. So we can convert the time measurement with multiplying these factors. Convert between hours to seconds:
Since there are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a mean solar day, the original definition of the second was 1/86,400 of a mean solar day (24 x 60 x 60 = 86,400). Natural irregularities in the rotation of the Earth limited the accuracy achievable through this definition, however.