Excel Function

WEEKNUM

Returns week number in a year.

WEEKNUM(serial_number, [return_type])

Arguments

serial_number

Required

Enter a date/reference-related value.

return_type

Optional

Sets week-start system: 1/omitted = Sunday, 2 = Monday, 11-17 = Monday-to-Sunday starts, 21 = ISO week numbering.

Practice Preview

calculate and display date/time values. Use WEEKNUM to Returns week number in a year. use 2 for return_type. Fill the argument fields below and complete a formula that achieves this goal.

Sample correct formula

=WEEKNUM(B2, 2)

Practice This Function

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