 
                Returns valid timezones
/ws/ws_timezones/api/{app_token}/mode/json/apiv/5
	    | Name | Req | Type | Description | 
|---|---|---|---|
| app_token |  | string | The api token for the given account. You can find the api token when navigating through account->api accounts | 
| apiv |  | integer | The api version; only version 5 supported. | 
| Name | 
|---|
| Authorization: Bearer {usertoken} | 
null