const time.stdHour

4 uses

	time (current package)
		format.go#L105: 	stdHour                  = iota + stdNeedClock // "15"
		format.go#L189: 				return layout[0:i], stdHour, layout[i+2:]
		format.go#L587: 		case stdHour:
		format.go#L920: 		case stdHour:

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