15 months from today is 15 Oct 2026, a Thursday. Adding 15 months in the future is usually just counting from July; however, longer calculations will push us from 2025 into 2026. Even if the calculation remains within the year, I usually take note of the 16 days left in the middle of July, to prep for left over days or weeks in the calculation.
All of our day calculators are measured and QA'd by our engineer. Read more about the Git process here. But here's how adding 15 months to today's date gets calculated on each visit:
Thursday Thursday October 15, 2026 is the 288 day of the year or 78.9% through 2026.
15 months is Thursday October 15, 2026 or could be Tuesday April 27, 2027 if you only want workdays. This calculation takes 15 months and only adds by the number of workdays in a week. Remember, removing the weekend from our calculation will drastically change our original Thursday October 15, 2026 date.
Work months Solution
Monday
Tuesday
Wednesday
15 months ahead
Thursday
October 15
Friday
Saturday
Sunday