const time.RFC3339Nano

8 uses

	time (current package)
		format.go#L112: 	RFC3339Nano = "2006-01-02T15:04:05.999999999Z07:00"
		format.go#L641: 	case RFC3339Nano:
		format.go#L1009: 	if layout == RFC3339 || layout == RFC3339Nano {
		format.go#L1024: 	if layout == RFC3339 || layout == RFC3339Nano {
		time.go#L1344: 	b := make([]byte, 0, len(RFC3339Nano)+len(`""`))
		time.go#L1375: 	b := make([]byte, 0, len(RFC3339Nano))

	go.uber.org/zap/zapcore
		encoder.go#L153: 	encodeTimeLayout(t, time.RFC3339Nano, enc)

	net/http
		transport.go#L2711: 		logf(time.Now().Format(time.RFC3339Nano)+": "+format, args...)