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 1024 starts on December 29, 1023 and ends on January 4, 1024 (ISO 8601, Monday to Sunday). 1024 has 53 ISO weeks, because 1 January 1024 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.
Frequently Asked Questions (FAQ)
How many weeks does 1024 have?
1024 has 53 ISO weeks, because 1 January 1024 falls on a Thursday.
When does week 1 of 1024 start?
Week 1 of 1024 starts on December 29, 1023 and ends on January 4, 1024 (ISO 8601, Monday to Sunday).
When does the last week of 1024 end?
Week 53 of 1024 starts on December 27, 1024 and ends on January 2, 1025 (ISO 8601, Monday to Sunday).
Which years have 53 weeks?
The next years with 53 ISO weeks are 1024, 1029, 1035, 1040, 1046.
Why do the US and Europe show different week numbers?
Europe follows ISO 8601: weeks start on Monday and week 1 is the week with the first Thursday of the year. In the US, weeks usually start on Sunday and week 1 is the week that contains 1 January, so the two numbers can differ by one.