The phrase expresses a need to determine the duration remaining before a specific time. For example, if it is currently 2:00 pm, the duration would be two hours and thirty minutes. This calculation can be performed mentally, using a digital device, or by consulting a traditional clock.
Knowing the time remaining before a deadline or event is crucial for time management and planning. It allows individuals to allocate time effectively, ensuring punctuality and the efficient completion of tasks. Historically, awareness of time has evolved from observing celestial movements to relying on precise instruments like atomic clocks. This development reflects a growing societal need for accurate timekeeping in various aspects of life, from personal schedules to global commerce.