allErrs = append(allErrs, ValidateObjectMeta(&event.ObjectMeta, true, apimachineryvalidation.NameIsDNSSubdomain, field.NewPath("metadata"))...)
	allErrs = append(allErrs, validateV1EventSeries(event)...)
	zeroTime := time.Time{}
	if event.EventTime.Time == zeroTime {
		allErrs = append(allErrs, field.Required(field.NewPath("eventTime"), ""))
	}