--Timer
min = min + 1;
if min == 60 then
    min = 0;
    hr = hr + 1;
    if hr == 24 then
        hr = 0;
    end
end

--Script
function write_time()
    local s;
    local shr;
    local smin;
    local sdot;

    if hr <= 12 then
        sdot = "am";
        shr = hr;
    else
        sdot = "pm";
        shr = hr - 12;
    end

    if min < 10 then
        smin = "0" .. min;
    else
        smin = min;
    end

    s = "Time is " .. shr .. ":" .. smin .. " " .. dot;
    return s;
end