how to display current time as a static value in lua/pico8

Question

Pico8 has a function time() that when called displays the current time from start of program.
i.e. print(time(),0,0,14) --prints time at (0,0) with colour 14

However the function doesn't stop and keeps drawing the time each frame. I'm trying to figure out how I would draw the time without it increasing/changing. So If I printed this 5 seconds from the start of the program I'd want it to display 5, but not change from that 5 value.

https://pico-8.fandom.com/wiki/Time I don't know how to store a static value of this time as a variable. Although according to the wiki, assigning var=time() will cause time at 0 to be stored.

Another way of phrasing this is...how would I display the time of 10 seconds when the following print is triggered? So after 10 seconds "time's up" is displayed. How would I display the current time 10, as well, as a static? Maybe I don't know what the time is when the event is triggered, so how can I count using time()?

function _init()
  last = time()
end

function _update()
  -- (empty update to use game loop)
end

function _draw()
  cls()
  if (time() - last) > 10 then
    print("time's up!", 44, 60, 7)
  end
end

Answer 1

I'm not sure what exactly are you trying to achieve, but maybe something like this?

local start
local limit = 10
local finish

function _init()
  start = time()
end

function _draw()
  cls()
  local now = time()
  local delta = now - start
  if delta >= limit then
    -- time's up
    print("time's up!", 44, 60, 7)
    -- saving timestamp
    if finish == nil then
      finish = now
    end
  else
    -- still ticking
    print(delta, 44, 60, 7)
  end
end