You can use it when you need to refer to an approaching deadline that needs to be met with a high level of urgency. For example, "The boss gave us a very tight deadline and we had to work late into the night to meet it. ".
ضرب العجل
مهلت محدود
مهلت کم
فرجه کم
وقت تنگه
کمبود وقت. ضیق وقت.