const time.stdPM

4 uses

	time (current package)
		format.go#L114: 	stdPM                    = iota + stdNeedClock // "PM"
		format.go#L222: 				return layout[0:i], stdPM, layout[i+2:]
		format.go#L611: 		case stdPM:
		format.go#L957: 		case stdPM:

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