Week 39 in 100

WEEK
40

This week starts on Sunday, September 26, 100 and ends on Saturday, October 2, 100.

WEEK EUROPE & ISO
39

This week starts on Monday, September 27, 100 and ends on Sunday, October 3, 100.

Week 39 of 100 begins on September 27, 100 and ends on October 3, 100. It covers days 270 to 276 of the year and falls in quarter 3.

Weeks since this week: 100494

Week 39 of 100 at a glance

Starts (Monday)September 27, 100
Ends (Sunday)October 3, 100
US week (Sunday to Saturday)40 (September 26, 100)
MonthSeptember / October
QuarterQ3
Days of the year270–276
Year completed at the end of this week75.6%
Weeks left in 100 after this week13
Weeks in 10052
Even or odd weekOdd

Calendar for September 100

September 100
SuMoTuWeThFrSa
Week 351234
Week 36567891011
Week 3712131415161718
Week 3819202122232425
Week 392627282930
USA Calendar

Download Calendar in printable A4 PDF

  • Print September 100 Calendar Open calendar PDF in new window (US version)
  • Print September 100 Calendar Open calendar PDF in new window (EU/ISO Version)
  • Print Full Year 100 Calendar (US version) Open calendar PDF in new window
  • Print Full Year 100 Calendar (EU/ISO Version) Open calendar PDF in new window

    • All Weeks in 100:

    Week 1 in 100 Week 2 in 100 Week 3 in 100 Week 4 in 100 Week 5 in 100 Week 6 in 100 Week 7 in 100 Week 8 in 100 Week 9 in 100 Week 10 in 100 Week 11 in 100 Week 12 in 100 Week 13 in 100 Week 14 in 100 Week 15 in 100 Week 16 in 100 Week 17 in 100 Week 18 in 100 Week 19 in 100 Week 20 in 100 Week 21 in 100 Week 22 in 100 Week 23 in 100 Week 24 in 100 Week 25 in 100 Week 26 in 100 Week 27 in 100 Week 28 in 100 Week 29 in 100 Week 30 in 100 Week 31 in 100 Week 32 in 100 Week 33 in 100 Week 34 in 100 Week 35 in 100 Week 36 in 100 Week 37 in 100 Week 38 in 100 Week 39 in 100 Week 40 in 100 Week 41 in 100 Week 42 in 100 Week 43 in 100 Week 44 in 100 Week 45 in 100 Week 46 in 100 Week 47 in 100 Week 48 in 100 Week 49 in 100 Week 50 in 100 Week 51 in 100 Week 52 in 100

    Past & Future Week Number 39:

    Week 39 in 2016 Week 39 in 2017 Week 39 in 2018 Week 39 in 2019 Week 39 in 2020 Week 39 in 2021 Week 39 in 2022 Week 39 in 2023 Week 39 in 2024 Week 39 in 2025 Week 39 in 2026 Week 39 in 2027 Week 39 in 2028 Week 39 in 2029 Week 39 in 2030 Week 39 in 2031 Week 39 in 2032 Week 39 in 2033 Week 39 in 2034 Week 39 in 2035 Week 39 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 40 of 100. It runs from September 26, 100 to October 2, 100.

    Even and odd weeks

    Week 39 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 39 in other years

    FromTo
    Week 39 in 98September 22, 98September 28, 98
    Week 39 in 99September 21, 99September 27, 99
    Week 39 in 101September 26, 101October 2, 101
    Week 39 in 102September 25, 102October 1, 102

    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 100 began on January 4, 100. 100 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 39 of 100 start and end?

    Week 39 of 100 starts on September 27, 100 and ends on October 3, 100 (ISO 8601, Monday to Sunday).

    Which month is week 39 of 100 in?

    Week 39 of 100 starts in September and ends in October.

    What dates are in week 39 of 100?

    September 27, 100, September 28, 100, September 29, 100, September 30, 100, October 1, 100, October 2, 100, and October 3, 100

    How many weeks does 100 have?

    100 has 52 ISO weeks.

    Is week 39 an even or odd week?

    Week 39 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 40 of 100. It runs from September 26, 100 to October 2, 100.