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Week 40, 1981
Week 40 of 1981 spans from Monday, September 28, 1981 to Sunday, October 4, 1981, according to the ISO 8601 date standard.
| Day of Week | Date |
|---|---|
| Monday | Monday, September 28, 1981 |
| Tuesday | Tuesday, September 29, 1981 |
| Wednesday | Wednesday, September 30, 1981 |
| Thursday | Thursday, October 1, 1981 |
| Friday | Friday, October 2, 1981 |
| Saturday | Saturday, October 3, 1981 |
| Sunday | Sunday, October 4, 1981 |
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How many weeks in year 1981?
There are 53 weeks in year 1981 according to the ISO 8601 standard.