Quick answer: Guam has 248 business days in 2027 for a default Monday-Friday week, for the period Jan 1, 2027 through Dec 31, 2027.
Month-by-month business days (2027)
Weekdays counted: Monday-Friday.
| Month | Business days | Public holiday days in month |
|---|---|---|
| January | 19 | 2 |
| February | 20 | 0 |
| March | 22 | 1 |
| April | 22 | 0 |
| May | 20 | 1 |
| June | 22 | 0 |
| July | 20 | 3 |
| August | 22 | 0 |
| September | 21 | 1 |
| October | 21 | 0 |
| November | 19 | 3 |
| December | 20 | 4 |
Public holidays in 2027 (Guam)
National public holidays that overlap the same date range as the business day calculation.
| Date | Name |
|---|---|
| Jan 1, 2027 | New Year |
| Jan 18, 2027 | Martin Luther King Jr. Day |
| Mar 1, 2027 | Guam History and Chamorro Heritage Day |
| May 31, 2027 | Memorial Day |
| Jul 4, 2027 | Independence Day |
| Jul 5, 2027 | Independence Day |
| Jul 21, 2027 | Liberation Day |
| Sep 6, 2027 | Labor Day |
| Nov 2, 2027 | All Souls' Day |
| Nov 11, 2027 | Veterans Day |
| Nov 25, 2027 | Thanksgiving |
| Dec 8, 2027 | Santa Marian Kamalen Day |
| Dec 24, 2027 | Christmas Day |
| Dec 25, 2027 | Christmas Day |
| Dec 31, 2027 | New Year |
Key insights
Total working days
Default Monday-Friday workweek in 2027.
Highest month
22 working days.
Lowest month
19 working days.
Holidays included
National public holidays excluded from the total.
Related guides & tools
Frequently asked questions
How many working days are there in Guam in 2027?
Guam has 248 working days in 2027 using a default Monday-Friday workweek and excluding national public holidays.
Are public holidays included in the calculation?
Yes. National public holidays in 2027 are excluded from the working-day total (about 15 calendar days in this dataset).
Which month has the fewest working days?
January and November has the fewest working days, with 19.
Can I customize the working week or include a region?
Yes. Use the business days calculator to change weekdays, add a region filter (when available), or calculate a custom range.