15 months before today was 26 Jan 2023, a Thursday. Subtracting 15 months in the past is usually just counting from April; however, longer calculations will push us from 2024 into 2023 or further. Even if the calculation remains within the year, I usually take note of the 4 days left in the end of April to prep for an additional calculation before 2024-04-26 00:18:27.901370. But that’s all there is to it - understand the month, if 15 months will change the year, season, or fiscal calendar, and subtract your dates.
All of our day calculators are measured and QA'd by our engineer. Read more about the Git process here. But here's how 15 months ago gets calculated on each visit:
15 months is Thursday January 26, 2023 or could be if you only want workdays. This calculation takes 15 months and only subtracts by the number of workdays in a week. Remember, removing the weekend from our calculation will drastically change our original Thursday January 26, 2023 date.
Work months Solution
Monday
Tuesday
Wednesday
15 months back
Thursday
January 26
Friday
Saturday
Sunday
Counting back from today is Thursday January 26, 2023 using a full calendar, and is also 11160 hours ago and 7.12% of the year.
Thursday Thursday January 26, 2023 was the 026 day of the year. At that time, it was 7.12% through 2023.