Week 43 in 80

WEEK
43

This week starts on Sunday, October 20, 80 and ends on Saturday, October 26, 80.

WEEK EUROPE & ISO
43

This week starts on Monday, October 21, 80 and ends on Sunday, October 27, 80.

Week 43 of 80 begins on October 21, 80 and ends on October 27, 80. It covers days 295 to 301 of the year and falls in quarter 4.

Weeks since this week: 101534

Week 43 of 80 at a glance

Starts (Monday)October 21, 80
Ends (Sunday)October 27, 80
US week (Sunday to Saturday)43 (October 20, 80)
MonthOctober
QuarterQ4
Days of the year295–301
Year completed at the end of this week82.2%
Weeks left in 80 after this week9
Weeks in 8052
Even or odd weekOdd

Calendar for October 80

October 80
SuMoTuWeThFrSa
Week 4012345
Week 416789101112
Week 4213141516171819
Week 4320212223242526
Week 442728293031
USA Calendar

All Weeks in 80:

Past & Future Week Number 43:

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 43 of 80. It runs from October 20, 80 to October 26, 80.

Even and odd weeks

Week 43 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 43 in other years

FromTo
Week 43 in 78October 24, 78October 30, 78
Week 43 in 79October 23, 79October 29, 79
Week 43 in 81October 20, 81October 26, 81
Week 43 in 82October 19, 82October 25, 82

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 80 began on January 1, 80. 80 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 43 of 80 start and end?

Week 43 of 80 starts on October 21, 80 and ends on October 27, 80 (ISO 8601, Monday to Sunday).

Which month is week 43 of 80 in?

Week 43 of 80 is in October.

What dates are in week 43 of 80?

October 21, 80, October 22, 80, October 23, 80, October 24, 80, October 25, 80, October 26, 80, and October 27, 80

How many weeks does 80 have?

80 has 52 ISO weeks.

Is week 43 an even or odd week?

Week 43 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 43 of 80. It runs from October 20, 80 to October 26, 80.