Week 20 in 1979

WEEK
20

This week starts on Sunday, May 13, 1979 and ends on Saturday, May 19, 1979.

WEEK EUROPE & ISO
20

This week starts on Monday, May 14, 1979 and ends on Sunday, May 20, 1979.

Week 20 of 1979 begins on May 14, 1979 and ends on May 20, 1979. It covers days 134 to 140 of the year and falls in quarter 2.

Weeks since this week: 2473

Week 20 of 1979 at a glance

Starts (Monday)May 14, 1979
Ends (Sunday)May 20, 1979
US week (Sunday to Saturday)20 (May 13, 1979)
MonthMay
QuarterQ2
Days of the year134–140
Year completed at the end of this week38.4%
Weeks left in 1979 after this week32
Weeks in 197952
Even or odd weekEven

Calendar for May 1979

May 1979
SuMoTuWeThFrSa
Week 1812345
Week 196789101112
Week 2013141516171819
Week 2120212223242526
Week 222728293031
USA Calendar

Download Calendar in printable A4 PDF

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  • Print Full Year 1979 Calendar (EU/ISO Version) Open calendar PDF in new window

    • All Weeks in 1979:

    Week 1 in 1979 Week 2 in 1979 Week 3 in 1979 Week 4 in 1979 Week 5 in 1979 Week 6 in 1979 Week 7 in 1979 Week 8 in 1979 Week 9 in 1979 Week 10 in 1979 Week 11 in 1979 Week 12 in 1979 Week 13 in 1979 Week 14 in 1979 Week 15 in 1979 Week 16 in 1979 Week 17 in 1979 Week 18 in 1979 Week 19 in 1979 Week 20 in 1979 Week 21 in 1979 Week 22 in 1979 Week 23 in 1979 Week 24 in 1979 Week 25 in 1979 Week 26 in 1979 Week 27 in 1979 Week 28 in 1979 Week 29 in 1979 Week 30 in 1979 Week 31 in 1979 Week 32 in 1979 Week 33 in 1979 Week 34 in 1979 Week 35 in 1979 Week 36 in 1979 Week 37 in 1979 Week 38 in 1979 Week 39 in 1979 Week 40 in 1979 Week 41 in 1979 Week 42 in 1979 Week 43 in 1979 Week 44 in 1979 Week 45 in 1979 Week 46 in 1979 Week 47 in 1979 Week 48 in 1979 Week 49 in 1979 Week 50 in 1979 Week 51 in 1979 Week 52 in 1979

    Past & Future Week Number 20:

    Week 20 in 2016 Week 20 in 2017 Week 20 in 2018 Week 20 in 2019 Week 20 in 2020 Week 20 in 2021 Week 20 in 2022 Week 20 in 2023 Week 20 in 2024 Week 20 in 2025 Week 20 in 2026 Week 20 in 2027 Week 20 in 2028 Week 20 in 2029 Week 20 in 2030 Week 20 in 2031 Week 20 in 2032 Week 20 in 2033 Week 20 in 2034 Week 20 in 2035 Week 20 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 20 of 1979. It runs from May 13, 1979 to May 19, 1979.

    Even and odd weeks

    Week 20 is an even week. Even and odd week numbers are used for alternating schedules such as shift rotas, school timetables, custody arrangements and waste collection.

    Week 20 in other years

    FromTo
    Week 20 in 1977May 16, 1977May 22, 1977
    Week 20 in 1978May 15, 1978May 21, 1978
    Week 20 in 1980May 12, 1980May 18, 1980
    Week 20 in 1981May 11, 1981May 17, 1981

    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 1979 began on January 1, 1979. 1979 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 20 of 1979 start and end?

    Week 20 of 1979 starts on May 14, 1979 and ends on May 20, 1979 (ISO 8601, Monday to Sunday).

    Which month is week 20 of 1979 in?

    Week 20 of 1979 is in May.

    What dates are in week 20 of 1979?

    May 14, 1979, May 15, 1979, May 16, 1979, May 17, 1979, May 18, 1979, May 19, 1979, and May 20, 1979

    How many weeks does 1979 have?

    1979 has 52 ISO weeks.

    Is week 20 an even or odd week?

    Week 20 is an even 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 20 of 1979. It runs from May 13, 1979 to May 19, 1979.