How to count down to an event
Set the counting start, event date and event time.
Choose the start date
Usually today, but it can be any earlier date.
Enter the event
Add the event date and a decimal time such as 9.5 for 09:30.
Read the countdown
The main result shows days, hours and minutes remaining.
What does this tool do?
An event countdown turns a future date into a concrete number of days, hours and minutes. Use it for exams, graduations, holidays, launches or appointments, and check the weekday before booking travel.
The Formula
Time until event = Event date and time − Start date at midnightFrequently Asked Questions
What if the event is today?
The result counts hours and minutes from midnight on the from date. Choose an event time later than midnight to get a positive countdown.
Can I count down to a past date?
No. The event must fall after the start date. For elapsed time use the duration between timestamps calculator instead.