Days Remaining in the Year Calculator

How it works

days remaining = last day of the year − the date (+1 to count the date itself) · day of year = date − first day of the year + 1 · percent complete = days passed ÷ days in the year × 100 (366 in a leap year) · weekdays left = Mondays–Fridays after the date up to the last day

The days left in the year are the gap between your date and December 31 of the same year, while the day-of-year number counts from January 1 as day 1. The two add up to the length of the year, which is 366 in a leap year and 365 otherwise. The percentage complete divides the days passed by that length, so it reads 50% around the start of July. By default the chosen date counts as passed, which suits checking in the evening; switch on “Count the date itself as remaining” to include it. The calculator also shows the time left in weeks, months and hours, splits it into weekdays and weekend days, and gives the days left in the current month and quarter. A month-by-month table and chart show how the remaining days are spread, and a milestones table lists the end of the month and quarter, the halfway point and the last day of the year. Choose “Fiscal year” to count to the end of a fiscal year instead, such as September 30 for the US federal government or March 31 or June 30 elsewhere.

Worked example

On October 18, 2026 (not a leap year), January–September have 273 days, so October 18 is day 291 of 365. That leaves 365 − 291 = 74 days until December 31: 10 weeks and 4 days, or 2 months and 13 days, or 1,776 hours. Of those 74 days, 54 are weekdays and 20 are weekend days (10 Saturdays and 10 Sundays), and the year is 291 ÷ 365 = 79.7% complete. In the US federal fiscal year, which ended on September 30, the same date is day 18 of FY2027, with 347 days left.

Frequently asked questions