Week 28, 2027
July 12–18, 2027
Monday July 12 – Sunday July 182027-W28Days 193–199
The seven days
| Date | ISO week date | Day of year | US week | Islamic date (computed) | Holidays and other dates |
|---|---|---|---|---|---|
| Mon, Jul 12 | 2027-W28-1 | 193 | 29 | 8 Safar 1449 AH | Battle of the Boyne (Orangemen's Day) (UK: Northern Ireland) |
| Tue, Jul 13 | 2027-W28-2 | 194 | 29 | 9 Safar 1449 AH | |
| Wed, Jul 14 | 2027-W28-3 | 195 | 29 | 10 Safar 1449 AH | National Day (Bastille Day) (France) |
| Thu, Jul 15 | 2027-W28-4 | 196 | 29 | 11 Safar 1449 AH | |
| Fri, Jul 16 | 2027-W28-5 | 197 | 29 | 12 Safar 1449 AH | |
| Sat, Jul 17 | 2027-W28-6 | 198 | 29 | 13 Safar 1449 AH | |
| Sun, Jul 18 | 2027-W28-7 | 199 | 30 | 14 Safar 1449 AH |
About week 28
In US numbering, where weeks start on Sunday and the week of January 1 is week 1, Monday to Saturday are US week 29 and Sunday US week 30.
Holidays this week: Battle of the Boyne (Orangemen's Day) on Mon, Jul 12 in UK: Northern Ireland; National Day (Bastille Day) on Wed, Jul 14 in France. All weeks of 2027 lists the neighbouring weeks.
Week 28 in other years
| Year | Week 28 runs |
|---|---|
| 2025 | Mon, Jul 7 – Sun, Jul 13 |
| 2026 | Mon, Jul 6 – Sun, Jul 12 |
| 2027 | Mon, Jul 12 – Sun, Jul 18 |
| 2028 | Mon, Jul 10 – Sun, Jul 16 |
| 2029 | Mon, Jul 9 – Sun, Jul 15 |
| 2030 | Mon, Jul 8 – Sun, Jul 14 |
In 2028, week 28 runs Mon, Jul 10 – Sun, Jul 16: 364 days later, 2 days earlier in the calendar. Over the 400-year cycle, the Monday of week 28 falls between July 5 and July 12.
By the end of week 28, 199 days of 2027 have passed (54.5% of the year), and 24 ISO weeks of 2027 remain. The week falls in Q3.
Writing week 28
ISO 8601 writes this week as 2027-W28 (basic format 2027W28), from 2027-W28-1 on Monday to -7 on Sunday. The week number page shows the spreadsheet and Python formulas that give these numbers.