allErrs = append(allErrs, apivalidation.ValidateNonnegativeField(int64(*spec.StartingDeadlineSeconds), fldPath.Child("startingDeadlineSeconds"))...)
	}

	if oldSpec == nil || !pointer.StringEqual(oldSpec.TimeZone, spec.TimeZone) {
		allErrs = append(allErrs, validateTimeZone(spec.TimeZone, fldPath.Child("timeZone"))...)
	}