Week 15 in 1971
Week 15 of 1971 begins on April 12, 1971 and ends on April 18, 1971. It covers days 102 to 108 of the year and falls in quarter 2.
Weeks since this week: 2893
Week 15 of 1971 at a glance
| Starts (Monday) | April 12, 1971 |
|---|---|
| Ends (Sunday) | April 18, 1971 |
| US week (Sunday to Saturday) | 16 (April 11, 1971) |
| Month | April |
| Quarter | Q2 |
| Days of the year | 102–108 |
| Year completed at the end of this week | 29.6% |
| Weeks left in 1971 after this week | 37 |
| Weeks in 1971 | 52 |
| Even or odd week | Odd |
Calendar for April 1971
Download Calendar in printable A4 PDF
(US version) (EU/ISO Version)
All Weeks in 1971:
Past & Future Week Number 15:
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 16 of 1971. It runs from April 11, 1971 to April 17, 1971.
Even and odd weeks
Week 15 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 15 in other years
| From | To | |
|---|---|---|
| Week 15 in 1969 | April 7, 1969 | April 13, 1969 |
| Week 15 in 1970 | April 6, 1970 | April 12, 1970 |
| Week 15 in 1972 | April 10, 1972 | April 16, 1972 |
| Week 15 in 1973 | April 9, 1973 | April 15, 1973 |
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 1971 began on January 4, 1971. 1971 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 15 of 1971 start and end?
Week 15 of 1971 starts on April 12, 1971 and ends on April 18, 1971 (ISO 8601, Monday to Sunday).
Which month is week 15 of 1971 in?
Week 15 of 1971 is in April.
What dates are in week 15 of 1971?
April 12, 1971, April 13, 1971, April 14, 1971, April 15, 1971, April 16, 1971, April 17, 1971, and April 18, 1971
How many weeks does 1971 have?
1971 has 52 ISO weeks.
Is week 15 an even or odd week?
Week 15 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 16 of 1971. It runs from April 11, 1971 to April 17, 1971.