Something is wrong with my millis() timer

Using Arduino Programming Questions
1

I have the following code segment:

int lastTime;
if ((millis() - lastTime) > 5000) {
    Serial.Println("Timer!");
    lastTime = millis();
}

For some reason the timer waits only once for the 5000 ms. After the first time, the function inside the if condition is executed with every program cycle.
I don't know what I'm doing wrong?

Any help would be much appreciated!

Edit: added code tags

2

Should be "static unsigned long lastTime"

Please remember to use code tags when posting ALL of your code

3

Thank you for your help.
Sorry for the formatting error, I'm new here.
What do you mean by code tags?

4

Please follow the advice given in the link below when posting code , use code tags and post the code here to make it easier to read and copy for examination

5

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