package main import "core:fmt" import "core:time/datetime" main :: proc () { first_day := datetime.Ordinal(1) last_day, _ := datetime.date_to_ordinal({ year=9999, month=12, day=31 }) for day in first_day..=last_day { weekday := datetime.day_of_week(day) if weekday == .Friday { date, _ := datetime.ordinal_to_date(day) if date.day == 13 { fmt.printfln("%4i-%2i-%2i", date.year, date.month, date.day) } } } }