I think real time is a signal; but it is not on a satellite receiver; it already gets a "satellite time" or can be set manually; which has to be changed manually when it is off.
I once wrote a program (embedded) that used my software only for a clocks display. The operating system was used from the "beginning" in microprocessors; un-complicated; and had an extra timer available so we could make "our clock" hang on the wall. It was a z80 my moto running ar 5 Mhz. Well, there are many better ways than software, believe me. And all have to do with design of the chip used.
A better way is to make a free-running osc. first for a real-time clock (then hook it up to the processor); rather than to rely upon software. Much more accurate; designed for a clock face would make it even better, or more accurate any way) then it would be very accurate compared to even fair to middling. That is what is wrong, however, in a FTA conventional satellite receiver. The clock is programmable by a satellite signal (if the time where the broadcast, or broadcaster cares!) OR MANUALLY; which shuts off GMT built-into the sofware and receiver receiving any programmation of "the time". Watches are very accurate today. The "accurate" clock in the US is one the weather stations get sent FTA all day; it is tuned to a wireless signal! My little weather station is absolutely correct time and even shows weather info! I do not EVEN know whaT THEY CALL IT! It is the time!
And now it is time to watch Thursday Night Football -> ON CBS~!
Did my HDVR1200 go and record it correctly anyways. All I have to do is turn on my tv and see! Is the clock changed, -- (menu-sytem setting-local time) no, because i set it for manual. Is my timer still there, (arrow down to timer setting; ok) yes. Is the channel still there, yes. My timer is set for 15:22 (3:22 PM supposedly) in 4 minutes it should go to cbs!
Do you know what it did; it changed the timer date to be the 28th of Sept. and changed the channel to nbc which I selected and saw not 2 minutes ago to read todays date; now on the 28th; a sunday it will go to sunday night football at 3:30 and my timer for sunday cbs changed to 10/2 at the 15:22 time set for today's thurs.. Am I seeing things? It selected the first timer, however, changed the date to the next timer; changed the channel to that time.
Now I am going to start this timer thing all over; and see if this time it will work!
I quit, I gotta watch football!
Oh, and I programmed a new timer #3 to be for every thurs. at 17:00. Hope it works "in memory"...