const time.stdPM

4 uses

	time (current package)
		format.go#L154: 	stdPM                    = iota + stdNeedClock // "PM"
		format.go#L273: 				return layout[0:i], stdPM, layout[i+2:]
		format.go#L767: 		case stdPM:
		format.go#L1178: 		case stdPM: