Calendar 2025 With Week Numbers Excel. The weekday function returns a number from 1 (sunday) to 7 (saturday) representing the day of the week of a date. The year 2025 ends on wednesday, december 31st 2025.

55 rows week numbers for 2025. The weekday function returns a number from 1 (sunday) to 7 (saturday) representing the day of the week of a date.