func Parse(layout, value string) (Time, error) {
	// Optimize for RFC3339 as it accounts for over half of all representations.
	if layout == RFC3339 || layout == RFC3339Nano {
		if t, ok := parseRFC3339(value, Local); ok {
			return t, nil
		}
	}
	return parse(layout, value, UTC, Local)
}

// ParseInLocation is like Parse but differs in two important ways.