Making a 1 minute delay like you do in software is not the solution for making a clock. I suppose that at some moment in time you really would like to do something with your timed data, like incrementing minutes and hours counters and maybe even display the actual time.... At that moment you'll be in trouble with the code you're currently making, so it's better to turn your bow right now!

I believe that in some of the previous posts it was pointed out that it may be (more) usefull to use a timer rather than a timed delay. This is especially the case with a clock program, where "some" accuracy is required - at least if you want to use the same timescale and calender as the rest of the world.

So get yourself together and use the timers! It's not that difficult and without them you'll never achieve what you want.