$3COND is an esolang by User:BoundedBeans in which the only loop is based on real life time.
[(n)(code)(n)] - run the following code for n milliseconds ? - wait (top of stack) milliseconds _ - push 0 to the stack + - increment the top value of the stack - - decrement the top value of the stack ~ - pop x, move the xth element of the stack to the top, removing it from the original spot . - output the top value as and ascii character , - input ascii character to the stack | - discard the top element / - pop x, restart the timer of the loop currentdepth - x levels deep
If the timer ever reaches the limit in a loop, execution breaks out of that loop and all deeper loops the instruction pointer may be in. This language would be total without the / instruction. The stack contains unbounded non-negative integers. Decrementing from zero is a no-op.