date

`weeknum-iso-system`

Subject: WEEKNUM
Category: value
Formula: =WEEKNUM("2023-01-01", 21)
Canonical: —

Per-engine results

matches canonical diverges no fixture

Engine	Verdict	Value
gsheets	diverge	52
excel	diverge	52
lattice	diverge	52
ironcalc	diverge	52
hyperformula	diverge	#VALUE!
libreoffice	match	—
formulas	diverge	52
pycel	diverge	#NAME?