Date calculator · 180 days and 6 months
What is 180 days from today?
Checked October 8, 2026 · first publish
Apr 5
Monday, 2027
180 days from today is Mon, Apr 5, 2027. Six calendar months from today is Wed, Apr 7, 2027, which is 2 days later. 180 business days from today is Tue, Jun 29, 2027.
180calendar days
25weeks and 5 days
Jun 29180 business days from today
When do you need 180 days, and when six months?
- Schengen 180-day window The 90-day Schengen limit is measured over a rolling 180-day reference period that looks back from each day of stay. Regulation (EU) 2016/399 (Schengen Borders Code), EUR-Lex
- IRS 183-day weighted count The IRS substantial presence test counts 31 days in the current year plus 183 days over three years (current year full, prior year one-third, year before one-sixth). IRS: Substantial presence test
Why do 180 days and six months end on different dates?
A half-year of calendar months holds 181 to 184 days. February is the short one, and the 31-day months add up. So six months from a date is always a little later than 180 days from it. The table below starts on the first of each month in 2027. From Jan 1 and Feb 1 the gap is one day. From Mar 1, May 1, Jul 1 and Aug 1 it is four days. People search "180 days from today" and "6 months from today" as nearly the same question, which is why both answers sit on this page.
What is 6 months from today?
| Start | 180 days later | 6 months later | Difference |
|---|---|---|---|
| Fri, Jan 1, 2027 | Wed, Jun 30, 2027 | Thu, Jul 1, 2027 | +1 day |
| Mon, Feb 1, 2027 | Sat, Jul 31, 2027 | Sun, Aug 1, 2027 | +1 day |
| Mon, Mar 1, 2027 | Sat, Aug 28, 2027 | Wed, Sep 1, 2027 | +4 days |
| Thu, Apr 1, 2027 | Tue, Sep 28, 2027 | Fri, Oct 1, 2027 | +3 days |
| Sat, May 1, 2027 | Thu, Oct 28, 2027 | Mon, Nov 1, 2027 | +4 days |
| Tue, Jun 1, 2027 | Sun, Nov 28, 2027 | Wed, Dec 1, 2027 | +3 days |
| Thu, Jul 1, 2027 | Tue, Dec 28, 2027 | Sat, Jan 1, 2028 | +4 days |
| Sun, Aug 1, 2027 | Fri, Jan 28, 2028 | Tue, Feb 1, 2028 | +4 days |
| Wed, Sep 1, 2027 | Mon, Feb 28, 2028 | Wed, Mar 1, 2028 | +2 days |
| Fri, Oct 1, 2027 | Wed, Mar 29, 2028 | Sat, Apr 1, 2028 | +3 days |
| Mon, Nov 1, 2027 | Sat, Apr 29, 2028 | Mon, May 1, 2028 | +2 days |
| Wed, Dec 1, 2027 | Mon, May 29, 2028 | Thu, Jun 1, 2028 | +3 days |
Calculated by DayReckon. Six months always run longer than 180 days: 181 to 184 days, depending on the months covered. From Mar 1, 2027, 180 days lands on Sat, Aug 28, while six months lands on Wed, Sep 1.
How does the Schengen 180-day window move?
The Schengen Borders Code limits short stays to 90 days in any 180-day period. The 180 days are a moving reference period: on each day of a stay, you look back across the 180 days before it. A day spent in the area today keeps counting against you until it slides out of that look-back window, roughly 180 days later. That is the practical use of the date in the answer box for a traveler: it shows when today drops off the back of the window.
Why does the IRS use 183 days instead?
The IRS substantial presence test is often confused with a 180-day rule. It uses 183 days, and it is weighted. You need at least 31 days in the current year. You also need 183 in total, adding all of this year's days, one-third of last year's and one-sixth of the year before. So 180 calendar days in one place does not settle anything by itself for this test.
The Schengen and IRS rules are summarized for counting only. This is not tax or immigration advice; read the source or ask the agency about your case.
Questions people ask
- What is 6 months from today?
- Six calendar months from today is Wed, Apr 7, 2027. That is the same day number six months later, moved back to the month's last day if the day does not exist. It is 2 days later than 180 days from today.
- Is 180 days the same as 6 months?
- No. Six months always contain 181 to 184 days, so 180 days ends first. Starting Jan 1, 2027, day 180 is Wed, Jun 30 and six months is Thu, Jul 1. Starting Mar 1, the gap grows to four days.
- Is the IRS substantial presence test 180 days?
- No, it uses 183. The IRS test needs at least 31 days in the current year and 183 days over three years, counting all current-year days, one-third of last year's and one-sixth of the year before. It is a weighted count, not a 180-day window.
Sources
- Regulation (EU) 2016/399, Schengen Borders Code (EUR-Lex) — eur-lex.europa.eu
- IRS: Substantial presence test — irs.gov
- OPM: Federal Holidays — opm.gov
General date information from official calendars (OPM, USNO). It is not legal, tax or immigration advice; check the agency named on the page for your own deadline.