The share of the year that has passed is the days gone so far divided by the total days in the year, shown as a percentage. Halfway through a common year, around 2 July, roughly half the year is behind you. The year-progress tool shows this as a bar that fills to the exact percentage and keeps updating while the page is open.
The simple sum
To do it by hand, first find the day number, counting 1 January as day 1. Then divide by the length of the year and multiply by 100.
- Days gone by 2 July in a common year: 183.
- Total days in the year: 365.
- Percentage passed: 183 ÷ 365 × 100, which is about 50 percent.
The days left follow straight from this: 365 minus 183 is 182 days remaining. In a leap year the total is 366, so the same date reads a fraction lower and one more day is left.
Year, quarter, month or day
The same idea works for any period. The year-progress tool lets you switch the bar to the current quarter, the current month or today, each filling from 0 at the start to 100 at the end. A quarter runs across three months, a month across its own length, and a day across its 24 hours, so you can see how far through each one you are at a glance.
Watching it live
Because the bar refreshes on its own, you do not need to reload to see the figure move. That makes it handy for a yearly goal, a habit you are pacing, or a status line to share. There is a Copy text button for a line like “the year is 51 percent complete”, and a Download image button to save the bar as a picture.
Putting it on your own page
If you want the count always in view, use the Copy embed code button on the year-progress tool. It gives you a small snippet that drops a live bar onto a blog, a wiki or a team wall. The bar runs entirely in the visitor’s browser, so there is nothing to install and no account to set up. For the day-number side of the same maths, see what day of the year is it.
