Date & Time
Countdown Calculator
Free countdown timer to a specific date and time. See a live countdown calculator showing exactly how many days, hours, minutes, and seconds until a date and time you choose.
Uses your device's local time zone
Time Remaining
0
Days
0
Hours
0
Minutes
0
Seconds
Counting Down To -
This date has already passed.
How much time is left until this date?
Enter a future date and time. The page runs a live countdown in days, hours, minutes, and seconds using your device clock. It is for events, launches, and “how long until the 15th,” not for payroll hours.
Static difference vs live timer
If you only need “how many days between June 1 and August 20,” use date difference. Use this page when you want the number to tick down.
Frequently Asked Questions
How do I set up a countdown timer to a specific date?
Pick a target date and time using the date-and-time picker, then click 'Start Countdown.' The calculator immediately begins showing a live-updating count of days, hours, minutes, and seconds remaining until that moment.
How many days until a date and time can I check?
As soon as you start the countdown, the days figure updates live along with hours, minutes, and seconds, so you always have an exact, real-time answer rather than a one-time snapshot.
Is this a live countdown calculator, or does it just show one static result?
It's fully live. Once started, the countdown updates every second in place, without reloading the page, so the numbers keep ticking down as you watch.
What time zone does the countdown use?
The countdown uses your device's local time zone. When you pick a target date and time, it's interpreted as local time, and the countdown compares it against your device's current local time.
What happens when the countdown reaches zero?
Once the target date and time has passed, the live countdown numbers stop and the calculator displays a message that the date has already passed, along with the target date and time you originally set, instead of showing negative numbers.
Can I restart the countdown with a different date?
Yes. Pick a new date and time and click 'Start Countdown' again — the previous countdown is automatically stopped before the new one begins, so there's no duplicate timer running in the background.
Does the countdown keep running if I switch to another browser tab?
The countdown continues running in the background using a repeating timer, so when you return to the tab the numbers will have updated to reflect the correct time remaining.
Related Calculators
About these results: Figures are for planning only. Confirm anything you will buy, bill, or submit (materials, payroll, medical screening) against the label, a quote, or a professional.