// users to provide RFC 3339 compliant dates.
	retDate, err = amztime.ISO8601Parse(dateStr)
	if err != nil {
		return rmode, r, ErrInvalidRetentionDate
	}
	_, replReq := h[textproto.CanonicalMIMEHeaderKey(xhttp.MinIOSourceReplicationRequest)]

	t, err := UTCNowNTP()
	if err != nil {
		lockLogIf(context.Background(), err)
		return rmode, r, ErrPastObjectLockRetainDate
	}