Week 3 in 1987
Week 3 of 1987 begins on January 12, 1987 and ends on January 18, 1987. It covers days 12 to 18 of the year and falls in quarter 1.
Weeks since this week: 2072
Week 3 of 1987 at a glance
| Starts (Monday) | January 12, 1987 |
|---|---|
| Ends (Sunday) | January 18, 1987 |
| US week (Sunday to Saturday) | 3 (January 11, 1987) |
| Month | January |
| Quarter | Q1 |
| Days of the year | 12–18 |
| Year completed at the end of this week | 4.9% |
| Weeks left in 1987 after this week | 50 |
| Weeks in 1987 | 53 |
| Even or odd week | Odd |
Calendar for January 1987
Download Calendar in printable A4 PDF
(US version) (EU/ISO Version)
All Weeks in 1987:
Past & Future Week Number 3:
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 1987. It runs from January 11, 1987 to January 17, 1987.
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
| From | To | |
|---|---|---|
| Week 3 in 1985 | January 14, 1985 | January 20, 1985 |
| Week 3 in 1986 | January 13, 1986 | January 19, 1986 |
| Week 3 in 1988 | January 18, 1988 | January 24, 1988 |
| Week 3 in 1989 | January 16, 1989 | January 22, 1989 |
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 1987 began on December 29, 1986. 1987 has 53 ISO weeks, because 1 January 1987 falls on a Thursday.
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 3 of 1987 start and end?
Week 3 of 1987 starts on January 12, 1987 and ends on January 18, 1987 (ISO 8601, Monday to Sunday).
Which month is week 3 of 1987 in?
Week 3 of 1987 is in January.
What dates are in week 3 of 1987?
January 12, 1987, January 13, 1987, January 14, 1987, January 15, 1987, January 16, 1987, January 17, 1987, and January 18, 1987
How many weeks does 1987 have?
1987 has 53 ISO weeks, because 1 January 1987 falls on a Thursday.
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 1987. It runs from January 11, 1987 to January 17, 1987.