Baaaki

package main

import (
	"fmt"
	"math"
)

// Try it online:
// Pre-loaded code: https://go.dev/play/p/k9_k81O4QHr
// Or paste the code yourself: https://go.dev/play/

Baaaki

import time
import webbrowser

countdown = int(input("Enter the countdown time in seconds: "))

for i in reversed(range(countdown)):
    hour = i // 3600
    minute = (i % 3600) // 60
    second = i % 60
    print(f"Remaining time {hour:02d} : {minute:02d} : {second:02d}")