It sounds like you want to run a function that updates a number every 60 seconds, and you want this process to repeat indefinitely. To achieve this, you can use a loop along with a delay function. Since you haven’t specified a programming language, I’ll provide a general pseudocode example that you can adapt to your specific language:
while true: // Infinite loop
// Call your function to update the number
updateNumber()
// Pause the loop for 60 seconds
sleep(60 seconds)