Calculating Time for clock's preset

[menta]

What is the best way to verify that Current Time of a clock is within the program(preset) Start-End time? e.g if a program should be ON from 13:00:00 and off at 14:00:00
I thought about calculating time in seconds from midnight, but represanting 24 Hours in seconds require more than 16Bit.

[skimask]

I thought about calculating time in seconds from midnight, but represanting 24 Hours in seconds require more than 16Bit.

Then don't use every second...use every 2 seconds. 60*60*24=86,400 / 2 = 43,200.
Or you could use every 1.5 seconds, 60*60*24=86,400 / 1.5 = 57.600.

Or use 'binary time'...if there is such a thing...
Instead of dividing a day into 86,400 chunks, it's broken up into 65,536 chunks, each chunk being 1.318359375 seconds long.

[Darrel Taylor]

What is the best way to verify that Current Time of a clock is within the program(preset) Start-End time? e.g if a program should be ON from 13:00:00 and off at 14:00:00

At first glance I'd say ...

IF Hours = 13 THEN
    ProgON = 1
ELSE
    ProgON = 0
ENDIF

But I'm guessing you want more than the example showed.
<br>

[menta]

Taylor, Do you mean calculate time from Mid or Noon ?

[skimask]

Taylor, Do you mean calculate time from Mid or Noon ?

Well, if 13 is 13 hours, and you want to check from 13:00 to 14:00, then I suppose it's from midnight...

[menta]

I think that calculating time from midnigh or noon will be a problem if end time of a program is after 00:00, e.g Start time - 13:00 , End time - 1:00

[menta]

If I didn't make it clear, a program can be:
Start 13:10:02
End 13:10:05
HH:MM:SS