Calendar Weeks

Calendar Week Numbers for 1999 - Week Number 31

All Calendar weeks in week 31 in the year 1999.

All Calendar weeks in the year 1999 (ISO 8601). Below we have listed all weeks for 1999.

Week 31 Details

Day Date
Monday2. Aug
Tuesday3. Aug
Wednesday4. Aug
Thursday5. Aug
Friday6. Aug
Saturday7. Aug
Sunday8. Aug

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How many weeks in year 1999

There are 52 weeks in year 1999

Frequently Asked Questions

Answers to frequently asked questions about the year 1999:

How many weeks are there in the year 1999?

There are 52 weeks in the year 1999.


When does the year 1999 start and end?

The year 1999 starts on January 1 and ends on December 31.


How are the weeks numbered in the year 1999?

The weeks are numbered according to the ISO 8601 standard, where each week starts on Monday and the first week of the year contains January 4.


How do I find the start and end dates of a specific week in the year 1999?

You can find the start and end dates of a specific week by using our calendar week details above. Simply click on the week number to see the details.


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