func time.isLeap

5 uses

	time (current package)
		format.go#L1344: 		if isLeap(year) {
		time.go#L1287: 		if isLeap(year) {
		time.go#L1679: func isLeap(year int) bool {
		zoneinfo.go#L566: 		if isLeap(year) && r.day >= 60 {
		zoneinfo.go#L597: 		if isLeap(year) && r.mon > 2 {