func time.daysIn

3 uses

	time (current package)
		format.go#L1141: 	if day < 1 || day > daysIn(Month(month), year) {
		time.go#L1015: func daysIn(m Month, year int) int {
		zoneinfo.go#L560: 			if d+7 >= daysIn(Month(r.mon), year) {

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