Week 19, 2026
May 4–10, 2026
Monday May 4 – Sunday May 102026-W19Days 124–130
The seven days
| Date | ISO week date | Day of year | US week | Islamic date (computed) | Holidays and other dates |
|---|---|---|---|---|---|
| Mon, May 4 | 2026-W19-1 | 124 | 19 | 17 Dhu al-Qa'dah 1447 AH | Early May bank holiday (UK: England and Wales, UK: Scotland, UK: Northern Ireland); Labour Day (Australia: Queensland); May Bank Holiday (Ireland); Greenery Day (Japan) |
| Tue, May 5 | 2026-W19-2 | 125 | 19 | 18 Dhu al-Qa'dah 1447 AH | Children's Day (Japan) |
| Wed, May 6 | 2026-W19-3 | 126 | 19 | 19 Dhu al-Qa'dah 1447 AH | Constitution Memorial Day (substitute day) (Japan) |
| Thu, May 7 | 2026-W19-4 | 127 | 19 | 20 Dhu al-Qa'dah 1447 AH | |
| Fri, May 8 | 2026-W19-5 | 128 | 19 | 21 Dhu al-Qa'dah 1447 AH | Victory in Europe Day (Victoire 1945) (France) |
| Sat, May 9 | 2026-W19-6 | 129 | 19 | 22 Dhu al-Qa'dah 1447 AH | |
| Sun, May 10 | 2026-W19-7 | 130 | 20 | 23 Dhu al-Qa'dah 1447 AH | Mother’s Day (US, Canada) |
About week 19
In US numbering, where weeks start on Sunday and the week of January 1 is week 1, Monday to Saturday are US week 19 and Sunday US week 20.
Holidays this week: Early May bank holiday on Mon, May 4 in UK: England and Wales, UK: Scotland, UK: Northern Ireland; Labour Day on Mon, May 4 in Australia: Queensland; May Bank Holiday on Mon, May 4 in Ireland; Greenery Day on Mon, May 4 in Japan; Children's Day on Tue, May 5 in Japan; Constitution Memorial Day (substitute day) on Wed, May 6 in Japan; Victory in Europe Day (Victoire 1945) on Fri, May 8 in France. Also this week: Mother’s Day (US, Canada) on Sun, May 10 (second Sunday in May). All weeks of 2026 lists the neighbouring weeks.
Week 19 in other years
| Year | Week 19 runs |
|---|---|
| 2024 | Mon, May 6 – Sun, May 12 |
| 2025 | Mon, May 5 – Sun, May 11 |
| 2026 | Mon, May 4 – Sun, May 10 |
| 2027 | Mon, May 10 – Sun, May 16 |
| 2028 | Mon, May 8 – Sun, May 14 |
| 2029 | Mon, May 7 – Sun, May 13 |
In 2027, week 19 runs Mon, May 10 – Sun, May 16: 2026 has 53 weeks, so the same number comes 371 days later, 6 days later in the calendar. Over the 400-year cycle, the Monday of week 19 falls between May 3 and May 10.
By the end of week 19, 130 days of 2026 have passed (35.6% of the year), and 34 ISO weeks of 2026 remain. The week falls in Q2.
Writing week 19
ISO 8601 writes this week as 2026-W19 (basic format 2026W19), from 2026-W19-1 on Monday to -7 on Sunday. The week number page shows the spreadsheet and Python formulas that give these numbers.