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Week 51, 1999
Week 51 of 1999 spans from Monday, December 20, 1999 to Sunday, December 26, 1999, according to the ISO 8601 date standard.
| Day of Week | Date |
|---|---|
| Monday | Monday, December 20, 1999 |
| Tuesday | Tuesday, December 21, 1999 |
| Wednesday | Wednesday, December 22, 1999 |
| Thursday | Thursday, December 23, 1999 |
| Friday | Friday, December 24, 1999 |
| Saturday | Saturday, December 25, 1999 |
| Sunday | Sunday, December 26, 1999 |
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How many weeks in year 1999?
There are 52 weeks in year 1999 according to the ISO 8601 standard.