Work out days until an event instantly with clear inputs, formula shown and shareable results.
The countdown is the difference in whole days between the two dates. From 4 September to 25 December 2026 is 112 days, or 16 weeks exactly, of which 80 are working days - and Christmas Day 2026 falls on a Friday. Negative results mean the event has already passed.
Days until
days = event date - today
Weeks
weeks = days / 7
Because deadlines and deliveries run on working days. A 112 day countdown gives only 80 usable business days.
The day count goes negative, which reads as the number of days since it happened.