90 days from Jan 23, 2015. Attorneys often need to compute the day which occurs a number of days in the future. For instance, this calculation required me to know what day was 90 days in the future from a date of publication of a Notice to Creditors in a probate matter. We are always computing deadline dates, and ConvertUnits does a great job, for free. The website also does scientific calculations, measurements, and much more.