Week 51, 2027
ISO-8601 Standard Week
Week 51 of 2027 runs from December 20, 2027 to December 26, 2027, and 2027 has 52 weeks in total.
This week is still ahead. See the full 2027 calendar, or learn why some years have 53 weeks.
Starts On
Monday
December 20, 2027
Ends On
Sunday
December 26, 2027
This week marks approximately 97% of the year 2027 passed.
December 2027 Calendar
| Week | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| 48 | 29 | 30 | 1 | 2 | 3 | 4 | 5 |
| 49 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 50 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| 51 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| 52 | 27 | 28 | 29 | 30 | 31 | 1 | 2 |
Holidays in Week 51
All Weeks in 2027
Week 51 in Other Years
Compare dates and holidays for week 51 across different years:
About Week 51
Week 51 of 2027 is a standard business week consisting of 7 days. It follows the ISO-8601 convention where Monday is the first day of the week.
Working Days
In most countries, this week contains 5 working days (Monday, December 20 to Friday, December 24) and a standard 2-day weekend.