def METHOD_NAME():
	from frappe.utils.momentjs import get_all_timezones
	if not "System Manager" in frappe.get_roles():
		frappe.throw(_("Not permitted"), frappe.PermissionError)
	all_defaults = frappe.db.get_defaults()
	defaults = {}
	for df in frappe.get_meta("System Settings").get("fields"):
		if df.fieldtype in ("Select", "Data"):
			defaults[df.fieldname] = all_defaults.get(df.fieldname)
	return {"timezones": get_all_timezones(), "defaults": defaults}