Week 19, 2027
May 10–16, 2027
Monday May 10 – Sunday May 162027-W19Days 130–136
The seven days
| Date | ISO week date | Day of year | US week | Islamic date (computed) | Holidays and other dates |
|---|---|---|---|---|---|
| Mon, May 10 | 2027-W19-1 | 130 | 20 | 4 Dhu al-Hijjah 1448 AH | |
| Tue, May 11 | 2027-W19-2 | 131 | 20 | 5 Dhu al-Hijjah 1448 AH | |
| Wed, May 12 | 2027-W19-3 | 132 | 20 | 6 Dhu al-Hijjah 1448 AH | |
| Thu, May 13 | 2027-W19-4 | 133 | 20 | 7 Dhu al-Hijjah 1448 AH | The Birthday of the Buddha (Hong Kong) |
| Fri, May 14 | 2027-W19-5 | 134 | 20 | 8 Dhu al-Hijjah 1448 AH | |
| Sat, May 15 | 2027-W19-6 | 135 | 20 | 9 Dhu al-Hijjah 1448 AH | |
| Sun, May 16 | 2027-W19-7 | 136 | 21 | 10 Dhu al-Hijjah 1448 AH | Eid al-Adha |
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 20 and Sunday US week 21.
Holidays this week: The Birthday of the Buddha on Thu, May 13 in Hong Kong. Also this week: Eid al-Adha on Sun, May 16 (10 Dhu al-Hijjah, Umm al-Qura (computed); announced locally). All weeks of 2027 lists the neighbouring weeks.
Week 19 in other years
| Year | Week 19 runs |
|---|---|
| 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 |
| 2030 | Mon, May 6 – Sun, May 12 |
In 2028, week 19 runs Mon, May 8 – Sun, May 14: 364 days later, 2 days earlier 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, 136 days of 2027 have passed (37.3% of the year), and 33 ISO weeks of 2027 remain. The week falls in Q2.
Writing week 19
ISO 8601 writes this week as 2027-W19 (basic format 2027W19), from 2027-W19-1 on Monday to -7 on Sunday. The week number page shows the spreadsheet and Python formulas that give these numbers.