180 Days Ago
One hundred eighty calendar days is half a 360-day year and a frequent stand-in for six months in day-count policies. Find the exact calendar date one hundred eighty days before today.
Last updated: July 17, 2026
One hundred eighty days ago was January 22, 2026. This is a fixed day count, not the same as six calendar months.
How this calculator works
Subtract 180 calendar days from the reference date.
Default reference is July 21, 2026; change it for semester or contract anchors.
Compare with 6 months ago when policies use calendar months instead of fixed days.
Worked example
From July 21, 2026, one hundred eighty days ago was January 22, 2026. Student visa and benefits rules citing one hundred eighty days often anchor here.
Enter a semester end date to find the calendar day one hundred eighty days earlier.
Practical use cases
Immigration and benefits one-hundred-eighty-day presence tests in calendar days.
Bond and note conventions using 180-day day-count fractions.
Semester planning with a one-hundred-eighty-day lookback from graduation.
Frequently asked questions
One hundred eighty calendar days ago was January 22, 2026.
Not necessarily. Six calendar months depend on month lengths. One hundred eighty days is always exactly 180 calendar days.
Yes.
Yes.
Use the 180 days from today shortcut for the forward date.
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Written & Reviewed by
DateCalx Team
Editorial Team
The DateCalx Team researches, builds, tests, and reviews every calculator to ensure accurate, reliable, and easy-to-understand date and time calculations. Our goal is to provide fast, trustworthy tools for everyday personal, educational, and professional use.
Last reviewed: July 17, 2026
Learn more in our About, Editorial Policy, and Methodology pages, or contact the DateCalx Team.