days     ExpirationDays
		expected time.Time
	}{
		{
			time.Date(2020, time.March, 15, 10, 10, 10, 0, time.UTC),
			4,
			time.Date(2020, time.March, 20, 0, 0, 0, 0, time.UTC),
		},
		{
			time.Date(2020, time.March, 15, 0, 0, 0, 0, time.UTC),
			1,
			time.Date(2020, time.March, 17, 0, 0, 0, 0, time.UTC),
		},
	}

	for i, tc := range testCases {
		t.Run(fmt.Sprintf("Test %d", i+1), func(t *testing.T) {

				Level:   ErrorKind,
				Message: msg,
				Time:    time.Now().UTC(),
				Trace:   &log.Trace{Message: msg},
			})
		}
		if err := w.rotate(); err != nil {
			msg := fmt.Sprintf("unable to rotate log file %v: %v", w.f.Name(), err)
			stdErrEnc.Encode(&log.Entry{
				Level:   ErrorKind,
				Message: msg,
				Time:    time.Now().UTC(),
				Trace:   &log.Trace{Message: msg},
			})
		}
	}
}

	if msg != "" {
		message = fmt.Sprintf(msg, args...)
	} else {
		message = fmt.Sprint(args...)
	}
	logJSON, err := json.Marshal(&log.Entry{
		Level:   FatalKind,
		Message: message,
		Time:    time.Now().UTC(),
		Trace:   &log.Trace{Message: message, Source: []string{getSource(6)}},
	})
	if err != nil {
		panic(err)
	}
	fmt.Fprintln(Output, string(logJSON))
	ExitFunc(1)
}

func (cred Credentials) IsExpired() bool {
	if cred.Expiration.IsZero() || cred.Expiration.Equal(timeSentinel) {
		return false
	}

	return cred.Expiration.Before(time.Now().UTC())
}

// IsTemp - returns whether credential is temporary or not.
func (cred Credentials) IsTemp() bool {
	return cred.SessionToken != "" && !cred.Expiration.IsZero() && !cred.Expiration.Equal(timeSentinel)
}

			return true
		}
		if !rule.Expiration.IsDateNull() && rule.Expiration.Date.Before(time.Now().UTC()) {
			return true
		}
		if !rule.Expiration.IsDaysNull() {
			return true
		}
		if rule.Expiration.DeleteMarker.val {
			return true
		}
		if !rule.Transition.IsDateNull() && rule.Transition.Date.Before(time.Now().UTC()) {
			return true
		}

    static final String MAVEN_METADATA_XML = "maven-metadata.xml";

    static DateFormat fmt;

    static {
        TimeZone timezone = TimeZone.getTimeZone("UTC");
        fmt = new SimpleDateFormat("yyyyMMddHHmmss");
        fmt.setTimeZone(timezone);
    }

    protected Metadata metadata;

    private final Path path;

    protected final Date timestamp;

		if ek, ok := errKind[0].(madmin.LogKind); ok {
			logKind = ek
		}
	}

	req := GetReqInfo(ctx)
	if req == nil {
		req = &ReqInfo{
			API:       "SYSTEM",
			RequestID: fmt.Sprintf("%X", time.Now().UTC().UnixNano()),
		}
	}
	req.RLock()
	defer req.RUnlock()

	API := "SYSTEM"
	switch {
	case req.API != "":
		API = req.API
	case subsystem != "":
		API += "." + subsystem
	}

					srcInfo.UserDefined[ReservedMetadataPrefixLower+ObjectLockRetentionTimestamp] = srcTimestamp.UTC().Format(time.RFC3339Nano)
				}
			}
		} else {
			srcInfo.UserDefined[strings.ToLower(xhttp.AmzObjectLockMode)] = string(retentionMode)
			srcInfo.UserDefined[strings.ToLower(xhttp.AmzObjectLockRetainUntilDate)] = amztime.ISO8601Format(retentionDate.UTC())

func isFile(path string) bool {
	if fi, err := os.Stat(path); err == nil {
		return fi.Mode().IsRegular()
	}

	return false
}

// UTCNow - returns current UTC time.
func UTCNow() time.Time {
	return time.Now().UTC()
}

// GenETag - generate UUID based ETag
func GenETag() string {
	return ToS3ETag(getMD5Hash([]byte(mustGetUUID())))
}

// ToS3ETag - return checksum to ETag

			if bgHealInfo.CurrentScanMode != scanMode {
				newHealInfo := bgHealInfo
				newHealInfo.CurrentScanMode = scanMode
				if scanMode == madmin.HealDeepScan {
					newHealInfo.BitrotStartTime = time.Now().UTC()
					newHealInfo.BitrotStartCycle = cycleInfo.current
				}
				saveBackgroundHealInfo(ctx, objAPI, newHealInfo)
			}

			// Wait before starting next cycle and wait on startup.