ISO 8601 week number of dates

Week 1 is the week, Monday to Sunday, with the first Thursday of the year, so the last days of December can be in week 1 and the first days of January in week 52 or 53 of the year before.

Usage

iso_week(date)

Arguments

date

Dates.

Value

Integers from 1 to 53.

Examples

golemcrypto:::iso_week(as.Date(c("2021-01-03", "2024-01-01", "2024-12-30")))
#> [1] 53  1  1