時限爆弾からの脱出 [Escape from a Time Bomb]

You have previously defused various bombs as a member of the bomb disposal squad, but your current mission is to defuse a time bomb planted in a certain building. When you arrive at the scene, you notice something. "Isn't this bomb getting bigger and bigger?" It seems that the bomb is expanding over time. If it continues to expand, it will explode... How much time is left? The scene is filled with panic due to the fear that the bomb could explode at any moment. If it is not stopped, many people will be caught up in it. Can you defuse this ticking time bomb in this extreme situation ?