Time Remaining Calculator – Days, Hours, Minutes & Seconds

Use this Time Remaining Calculator to create an instant countdown to any future date. Find out exactly how many days, hours, minutes, and seconds are left until a deadline, birthday, holiday, or retirement. Optional live updates for real-time countdowns.

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Notes

When “Use current time (live)” is enabled, the calculator updates every second.

FAQ - Time Remaining

What does time remaining mean?

Time remaining is the amount of time left between now and a future date/time. It’s used for deadlines, events, and countdowns.

How do I calculate time remaining until a specific date?

Time remaining is calculated by subtracting the current date/time from a target date/time. This calculator shows the result instantly in days, hours, minutes, and seconds.

How does a countdown timer work?

A countdown timer works by continuously updating the time remaining until a specific date or event. This calculator refreshes every second to show the exact time left in days, hours, minutes, and seconds.

How do I calculate hours remaining until a deadline?

Hours remaining are the time remaining converted into total hours. Set your target date/time and the calculator will show the exact hours left.

How many days are left until a specific date (or year like 2027)?

Days left are the time remaining expressed as total days until a target date. Set the target (for example January 1, 2027) to see the exact number of days remaining.