Week 21 in 13

WEEK
21

This week starts on Sunday, May 19, 13 and ends on Saturday, May 25, 13.

WEEK EUROPE & ISO
21

This week starts on Monday, May 20, 13 and ends on Sunday, May 26, 13.

Week 21 of 13 begins on May 20, 13 and ends on May 26, 13. It covers days 140 to 146 of the year and falls in quarter 2.

Weeks since this week: 105052

Week 21 of 13 at a glance

Starts (Monday)May 20, 13
Ends (Sunday)May 26, 13
US week (Sunday to Saturday)21 (May 19, 13)
MonthMay
QuarterQ2
Days of the year140–146
Year completed at the end of this week40.0%
Weeks left in 13 after this week31
Weeks in 1352
Even or odd weekOdd

Calendar for May 13

May 13
SuMoTuWeThFrSa
Week 181234
Week 19567891011
Week 2012131415161718
Week 2119202122232425
Week 22262728293031
USA Calendar

Download Calendar in printable A4 PDF

  • Print May 13 Calendar Open calendar PDF in new window (US version)
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  • Print Full Year 13 Calendar (US version) Open calendar PDF in new window
  • Print Full Year 13 Calendar (EU/ISO Version) Open calendar PDF in new window

    • All Weeks in 13:

    Week 1 in 13 Week 2 in 13 Week 3 in 13 Week 4 in 13 Week 5 in 13 Week 6 in 13 Week 7 in 13 Week 8 in 13 Week 9 in 13 Week 10 in 13 Week 11 in 13 Week 12 in 13 Week 13 in 13 Week 14 in 13 Week 15 in 13 Week 16 in 13 Week 17 in 13 Week 18 in 13 Week 19 in 13 Week 20 in 13 Week 21 in 13 Week 22 in 13 Week 23 in 13 Week 24 in 13 Week 25 in 13 Week 26 in 13 Week 27 in 13 Week 28 in 13 Week 29 in 13 Week 30 in 13 Week 31 in 13 Week 32 in 13 Week 33 in 13 Week 34 in 13 Week 35 in 13 Week 36 in 13 Week 37 in 13 Week 38 in 13 Week 39 in 13 Week 40 in 13 Week 41 in 13 Week 42 in 13 Week 43 in 13 Week 44 in 13 Week 45 in 13 Week 46 in 13 Week 47 in 13 Week 48 in 13 Week 49 in 13 Week 50 in 13 Week 51 in 13 Week 52 in 13

    Past & Future Week Number 21:

    Week 21 in 2016 Week 21 in 2017 Week 21 in 2018 Week 21 in 2019 Week 21 in 2020 Week 21 in 2021 Week 21 in 2022 Week 21 in 2023 Week 21 in 2024 Week 21 in 2025 Week 21 in 2026 Week 21 in 2027 Week 21 in 2028 Week 21 in 2029 Week 21 in 2030 Week 21 in 2031 Week 21 in 2032 Week 21 in 2033 Week 21 in 2034 Week 21 in 2035 Week 21 in 2036

    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 13. It runs from May 19, 13 to May 25, 13.

    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 11May 23, 11May 29, 11
    Week 21 in 12May 21, 12May 27, 12
    Week 21 in 14May 19, 14May 25, 14
    Week 21 in 15May 18, 15May 24, 15

    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 13 began on December 31, 12. 13 has 52 ISO weeks.

    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 13 start and end?

    Week 21 of 13 starts on May 20, 13 and ends on May 26, 13 (ISO 8601, Monday to Sunday).

    Which month is week 21 of 13 in?

    Week 21 of 13 is in May.

    What dates are in week 21 of 13?

    May 20, 13, May 21, 13, May 22, 13, May 23, 13, May 24, 13, May 25, 13, and May 26, 13

    How many weeks does 13 have?

    13 has 52 ISO weeks.

    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 13. It runs from May 19, 13 to May 25, 13.