Week 3 in 2109

WEEK
3

This week starts on Sunday, January 13, 2109 and ends on Saturday, January 19, 2109.

WEEK EUROPE & ISO
3

This week starts on Monday, January 14, 2109 and ends on Sunday, January 20, 2109.

Week 3 of 2109 begins on January 14, 2109 and ends on January 20, 2109. It covers days 14 to 20 of the year and falls in quarter 1.

Weeks until this week: 4295

Week 3 of 2109 at a glance

Starts (Monday)January 14, 2109
Ends (Sunday)January 20, 2109
US week (Sunday to Saturday)3 (January 13, 2109)
MonthJanuary
QuarterQ1
Days of the year14–20
Year completed at the end of this week5.5%
Weeks left in 2109 after this week49
Weeks in 210952
Even or odd weekOdd

Calendar for January 2109

January 2109
SuMoTuWeThFrSa
112345
26789101112
313141516171819
420212223242526
52728293031
USA Calendar

Download Calendar in printable A4 PDF

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  • Print Full Year 2109 Calendar (EU/ISO Version) Open calendar PDF in new window

    • All Weeks in 2109:

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

    Past & Future Week Number 3:

    Week 3 in 1976 Week 3 in 1977 Week 3 in 1978 Week 3 in 1979 Week 3 in 1980 Week 3 in 1981 Week 3 in 1982 Week 3 in 1983 Week 3 in 1984 Week 3 in 1985 Week 3 in 1986 Week 3 in 1987 Week 3 in 1988 Week 3 in 1989 Week 3 in 1990 Week 3 in 1991 Week 3 in 1992 Week 3 in 1993 Week 3 in 1994 Week 3 in 1995 Week 3 in 1996 Week 3 in 1997 Week 3 in 1998 Week 3 in 1999 Week 3 in 2000 Week 3 in 2001 Week 3 in 2002 Week 3 in 2003 Week 3 in 2004 Week 3 in 2005 Week 3 in 2006 Week 3 in 2007 Week 3 in 2008 Week 3 in 2009 Week 3 in 2010 Week 3 in 2011 Week 3 in 2012 Week 3 in 2013 Week 3 in 2014 Week 3 in 2015 Week 3 in 2016 Week 3 in 2017 Week 3 in 2018 Week 3 in 2019 Week 3 in 2020 Week 3 in 2021 Week 3 in 2022 Week 3 in 2023 Week 3 in 2024 Week 3 in 2025 Week 3 in 2026 Week 3 in 2027 Week 3 in 2028 Week 3 in 2029 Week 3 in 2030 Week 3 in 2031 Week 3 in 2032 Week 3 in 2033 Week 3 in 2034 Week 3 in 2035 Week 3 in 2036 Week 3 in 2037 Week 3 in 2038 Week 3 in 2039 Week 3 in 2040 Week 3 in 2041 Week 3 in 2042 Week 3 in 2043 Week 3 in 2044 Week 3 in 2045 Week 3 in 2046 Week 3 in 2047 Week 3 in 2048 Week 3 in 2049 Week 3 in 2050 Week 3 in 2051 Week 3 in 2052 Week 3 in 2053 Week 3 in 2054 Week 3 in 2055 Week 3 in 2056 Week 3 in 2057 Week 3 in 2058 Week 3 in 2059 Week 3 in 2060 Week 3 in 2061 Week 3 in 2062 Week 3 in 2063 Week 3 in 2064 Week 3 in 2065 Week 3 in 2066 Week 3 in 2067 Week 3 in 2068 Week 3 in 2069 Week 3 in 2070 Week 3 in 2071 Week 3 in 2072 Week 3 in 2073 Week 3 in 2074 Week 3 in 2075 Week 3 in 2076

    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 3 of 2109. It runs from January 13, 2109 to January 19, 2109.

    Even and odd weeks

    Week 3 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 3 in other years

    FromTo
    Week 3 in 2107January 17, 2107January 23, 2107
    Week 3 in 2108January 16, 2108January 22, 2108
    Week 3 in 2110January 13, 2110January 19, 2110
    Week 3 in 2111January 12, 2111January 18, 2111

    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 2109 began on December 31, 2108. 2109 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.

    Frequently Asked Questions (FAQ)

    When does week 3 of 2109 start and end?

    Week 3 of 2109 starts on January 14, 2109 and ends on January 20, 2109 (ISO 8601, Monday to Sunday).

    Which month is week 3 of 2109 in?

    Week 3 of 2109 is in January.

    What dates are in week 3 of 2109?

    January 14, 2109, January 15, 2109, January 16, 2109, January 17, 2109, January 18, 2109, January 19, 2109, and January 20, 2109

    How many weeks does 2109 have?

    2109 has 52 ISO weeks.

    Is week 3 an even or odd week?

    Week 3 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 3 of 2109. It runs from January 13, 2109 to January 19, 2109.