Week 1 in 111

WEEK
1

This week starts on Sunday, December 28, 110 and ends on Saturday, January 3, 111.

WEEK EUROPE & ISO
1

This week starts on Monday, December 29, 110 and ends on Sunday, January 4, 111.

Week 1 of 111 spans the turn of the year: it begins on December 29, 110 and ends on January 4, 111.

Weeks since this week: 99959

Week 1 of 111 at a glance

Starts (Monday)December 29, 110
Ends (Sunday)January 4, 111
US week (Sunday to Saturday)1 (December 28, 110)
MonthDecember / January
QuarterQ1
Year completed at the end of this week1.1%
Weeks left in 111 after this week52
Weeks in 11153
Even or odd weekOdd

Calendar for December 111

December 111
SuMoTuWeThFrSa
Week 4912345
Week 506789101112
Week 5113141516171819
Week 5220212223242526
Week 12728293031
USA Calendar

Download Calendar in printable A4 PDF

  • Print December 111 Calendar Open calendar PDF in new window (US version)
  • Print December 111 Calendar Open calendar PDF in new window (EU/ISO Version)
  • Print Full Year 111 Calendar (US version) Open calendar PDF in new window
  • Print Full Year 111 Calendar (EU/ISO Version) Open calendar PDF in new window

    • All Weeks in 111:

    Week 1 in 111 Week 2 in 111 Week 3 in 111 Week 4 in 111 Week 5 in 111 Week 6 in 111 Week 7 in 111 Week 8 in 111 Week 9 in 111 Week 10 in 111 Week 11 in 111 Week 12 in 111 Week 13 in 111 Week 14 in 111 Week 15 in 111 Week 16 in 111 Week 17 in 111 Week 18 in 111 Week 19 in 111 Week 20 in 111 Week 21 in 111 Week 22 in 111 Week 23 in 111 Week 24 in 111 Week 25 in 111 Week 26 in 111 Week 27 in 111 Week 28 in 111 Week 29 in 111 Week 30 in 111 Week 31 in 111 Week 32 in 111 Week 33 in 111 Week 34 in 111 Week 35 in 111 Week 36 in 111 Week 37 in 111 Week 38 in 111 Week 39 in 111 Week 40 in 111 Week 41 in 111 Week 42 in 111 Week 43 in 111 Week 44 in 111 Week 45 in 111 Week 46 in 111 Week 47 in 111 Week 48 in 111 Week 49 in 111 Week 50 in 111 Week 51 in 111 Week 52 in 111 Week 53 in 111

    Past & Future Week Number 1:

    Week 1 in 2016 Week 1 in 2017 Week 1 in 2018 Week 1 in 2019 Week 1 in 2020 Week 1 in 2021 Week 1 in 2022 Week 1 in 2023 Week 1 in 2024 Week 1 in 2025 Week 1 in 2026 Week 1 in 2027 Week 1 in 2028 Week 1 in 2029 Week 1 in 2030 Week 1 in 2031 Week 1 in 2032 Week 1 in 2033 Week 1 in 2034 Week 1 in 2035 Week 1 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 1 of 111. It runs from December 28, 110 to January 3, 111.

    Even and odd weeks

    Week 1 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 1 in other years

    FromTo
    Week 1 in 109December 31, 108January 6, 109
    Week 1 in 110December 30, 109January 5, 110
    Week 1 in 112January 4, 112January 10, 112
    Week 1 in 113January 2, 113January 8, 113

    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 111 began on December 29, 110. 111 has 53 ISO weeks, because 1 January 111 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 1 of 111 start and end?

    Week 1 of 111 starts on December 29, 110 and ends on January 4, 111 (ISO 8601, Monday to Sunday).

    Which month is week 1 of 111 in?

    Week 1 of 111 starts in December and ends in January.

    What dates are in week 1 of 111?

    December 29, 110, December 30, 110, December 31, 110, January 1, 111, January 2, 111, January 3, 111, and January 4, 111

    How many weeks does 111 have?

    111 has 53 ISO weeks, because 1 January 111 falls on a Thursday.

    Is week 1 an even or odd week?

    Week 1 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 1 of 111. It runs from December 28, 110 to January 3, 111.