Week 21 in 1001

WEEK
21

This week starts on Sunday, May 17, 1001 and ends on Saturday, May 23, 1001.

WEEK EUROPE & ISO
21

This week starts on Monday, May 18, 1001 and ends on Sunday, May 24, 1001.

Week 21 of 1001 begins on May 18, 1001 and ends on May 24, 1001. It covers days 138 to 144 of the year and falls in quarter 2.

Weeks since this week: 53501

Week 21 of 1001 at a glance

Starts (Monday)May 18, 1001
Ends (Sunday)May 24, 1001
US week (Sunday to Saturday)21 (May 17, 1001)
MonthMay
QuarterQ2
Days of the year138–144
Year completed at the end of this week39.5%
Weeks left in 1001 after this week32
Weeks in 100153
Even or odd weekOdd

Calendar for May 1001

May 1001
SuMoTuWeThFrSa
Week 1812
Week 193456789
Week 2010111213141516
Week 2117181920212223
Week 2224252627282930
Week 2331
USA Calendar

All Weeks in 1001:

Past & Future Week Number 21:

US and ISO week numbers

In the US system, where weeks start on Sunday and week 1 is the week that contains 1 January, this is week 21 of 1001. It runs from May 17, 1001 to May 23, 1001.

Even and odd weeks

Week 21 is an odd week. Even and odd week numbers are used for alternating schedules such as shift rotas, school timetables, custody arrangements and waste collection.

Week 21 in other years

FromTo
Week 21 in 999May 20, 999May 26, 999
Week 21 in 1000May 19, 1000May 25, 1000
Week 21 in 1002May 24, 1002May 30, 1002
Week 21 in 1003May 23, 1003May 29, 1003

How week numbers are counted

Most of the world numbers weeks according to the ISO 8601 standard. A week starts on Monday, and week 1 is the week that contains the first Thursday of the year, which is always the week that contains 4 January.

Week 1 of 1001 began on December 29, 1000. 1001 has 53 ISO weeks, because 1 January 1001 falls on a Thursday.

Because of this rule, the first days of January can belong to the last week of the previous year, and the last days of December can belong to week 1 of the next year.

In the United States, weeks usually start on Sunday and week 1 is the week that contains 1 January, so the US week number can differ from the ISO week number.

Find the week number of a date

Frequently Asked Questions (FAQ)

When does week 21 of 1001 start and end?

Week 21 of 1001 starts on May 18, 1001 and ends on May 24, 1001 (ISO 8601, Monday to Sunday).

Which month is week 21 of 1001 in?

Week 21 of 1001 is in May.

What dates are in week 21 of 1001?

May 18, 1001, May 19, 1001, May 20, 1001, May 21, 1001, May 22, 1001, May 23, 1001, and May 24, 1001

How many weeks does 1001 have?

1001 has 53 ISO weeks, because 1 January 1001 falls on a Thursday.

Is week 21 an even or odd week?

Week 21 is an odd week.

What is the US week number for this week?

In the US system, where weeks start on Sunday and week 1 is the week that contains 1 January, this is week 21 of 1001. It runs from May 17, 1001 to May 23, 1001.