const time.stdZeroYearDay

5 uses

	time (current package)
		format.go#L104: 	stdZeroYearDay                                 // "002"
		format.go#L184: 				return layout[0:i], stdZeroYearDay, layout[i+3:]
		format.go#L585: 		case stdZeroYearDay:
		format.go#L911: 		case stdUnderYearDay, stdZeroYearDay:
		format.go#L917: 			yday, value, err = getnum3(value, std == stdZeroYearDay)