const time.daysPer400Years

4 uses

	time (current package)
		time.go#L917: 	daysPer400Years  = 365*400 + 97
		time.go#L934: 	n := d / daysPer400Years
		time.go#L936: 	d -= daysPer400Years * n
		time.go#L1037: 	d := daysPer400Years * n