}

func validateSvcExpirationInUTC(expirationInUTC time.Time) error {
	if expirationInUTC.IsZero() || expirationInUTC.Equal(timeSentinel) {
		// Service accounts might not have expiration in older releases.
		return nil
	}

	currentTime := time.Now().UTC()
	minExpiration := currentTime.Add(minServiceAccountExpiry)
	maxExpiration := currentTime.Add(maxServiceAccountExpiry)