How to make a timer

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1

how would i make a timer instead of like a countdown like 1000, 999, 998 and so on
but i would like to make a timer with like 30:00, 29:59, 29:58, and so on

2

The base number needs to be in seconds. In this case I make a timer for 24 hours. Each hour has 3600 minutes so I do 24 * 3600

local timerTime = 24 * 3600



local hours = math.floor(timerTime /3600)
local minutes = math.floor((timerTime - (hours*3600))/60)
local seconds = ((timerTime - (hours * 3600)) - (minutes * 60))

textLabel.Text = hours..":"..minutes..":"..seconds

Let me know if this works!

3 
local TimeRemaining = 30; -- in minutes
TimeRemaining *= 60;

repeat
    local Minutes = math.round(TimeRemaining / 60);
    local Seconds = math.round(TimeRemaining % 60);

    TimeRemaining -= 1;
    TextLabel.Text = string.format('%d:%02i', Minutes, Seconds);
until
    TimeRemaining <= 0;

-- everything beyond here runs when the timer runs out