Week 13 in 1980

WEEK
13

This week starts on Sunday, March 23, 1980 and ends on Saturday, March 29, 1980.

WEEK EUROPE & ISO
13

This week starts on Monday, March 24, 1980 and ends on Sunday, March 30, 1980.

Week 13 of 1980 begins on March 24, 1980 and ends on March 30, 1980. It covers days 84 to 90 of the year and falls in quarter 1.

Weeks since this week: 2427

Week 13 of 1980 at a glance

Starts (Monday)March 24, 1980
Ends (Sunday)March 30, 1980
US week (Sunday to Saturday)13 (March 23, 1980)
MonthMarch
QuarterQ1
Days of the year84–90
Year completed at the end of this week24.6%
Weeks left in 1980 after this week39
Weeks in 198052
Even or odd weekOdd

Calendar for March 1980

March 1980
SuMoTuWeThFrSa
Week 91
Week 102345678
Week 119101112131415
Week 1216171819202122
Week 1323242526272829
Week 143031
USA Calendar

All Weeks in 1980:

Past & Future Week Number 13:

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 13 of 1980. It runs from March 23, 1980 to March 29, 1980.

Even and odd weeks

Week 13 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 13 in other years

FromTo
Week 13 in 1978March 27, 1978April 2, 1978
Week 13 in 1979March 26, 1979April 1, 1979
Week 13 in 1981March 23, 1981March 29, 1981
Week 13 in 1982March 29, 1982April 4, 1982

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 1980 began on December 31, 1979. 1980 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 13 of 1980 start and end?

Week 13 of 1980 starts on March 24, 1980 and ends on March 30, 1980 (ISO 8601, Monday to Sunday).

Which month is week 13 of 1980 in?

Week 13 of 1980 is in March.

What dates are in week 13 of 1980?

March 24, 1980, March 25, 1980, March 26, 1980, March 27, 1980, March 28, 1980, March 29, 1980, and March 30, 1980

How many weeks does 1980 have?

1980 has 52 ISO weeks.

Is week 13 an even or odd week?

Week 13 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 13 of 1980. It runs from March 23, 1980 to March 29, 1980.