| Name | Type | Description | Notes |
|---|---|---|---|
| date_time | string | The date and time at which the campaign will be delivered. | |
| timezone | string | The timezone the specified date and time refers to. By default the timezone in your settings panel will be used. If specified, one of the following values must be used. * Dateline Standard Time * Samoa Standard Time * Hawaiian Standard Time * Alaskan Standard Time * Pacific Standard Time * Pacific Standard Time (Mexico) * US Mountain Standard Time * Mountain Standard Time (Mexico) * Mountain Standard Time * Central Standard Time * Central Standard Time (Mexico) * Canada Central Standard Time * SA Pacific Standard Time * US Eastern Standard Time * Eastern Standard Time * Venezuela Standard Time * Atlantic Standard Time * SA Western Standard Time * Central Brazilian Standard Time * Pacific SA Standard Time * Newfoundland Standard Time * E. South America Standard Time * Argentina Standard Time * SA Eastern Standard Time * Greenland Standard Time * Montevideo Standard Time * Mid-Atlantic Standard Time * Azores Standard Time * Cape Verde Standard Time * Greenwich Standard Time * GMT Standard Time * Morocco Standard Time * W. Central Africa Standard Time * Central European Standard Time * Romance Standard Time * W. Europe Standard Time * Namibia Standard Time * E. Europe Standard Time * Israel Standard Time * FLE Standard Time * South Africa Standard Time * Egypt Standard Time * Middle East Standard Time * GTB Standard Time * Jordan Standard Time * Iran Standard Time * Georgian Standard Time * E. Africa Standard Time * Russian Standard Time * Arab Standard Time * Arabic Standard Time * Caucasus Standard Time * Mauritius Standard Time * Azerbaijan Standard Time * Arabian Standard Time * Afghanistan Standard Time * West Asia Standard Time * Pakistan Standard Time * Ekaterinburg Standard Time * Sri Lanka Standard Time * India Standard Time * Nepal Standard Time * N. Central Asia Standard Time * Central Asia Standard Time * Myanmar Standard Time * North Asia Standard Time * SE Asia Standard Time * Taipei Standard Time * W. Australia Standard Time * Singapore Standard Time * North Asia East Standard Time * China Standard Time * Yakutsk Standard Time * Korea Standard Time * Tokyo Standard Time * AUS Central Standard Time * Cen. Australia Standard Time * AUS Eastern Standard Time * West Pacific Standard Time * Tasmania Standard Time * Vladivostok Standard Time * Central Pacific Standard Time * New Zealand Standard Time * Tonga Standard Time | [optional] |