enum StartDateTimeType (v202508)
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Specifies the start type to use for an entity with a start date time field.
For example, a LineItem or LineItemCreativeAssociation.
- Namespace
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https://www.google.com/apis/ads/publisher/v202508
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Last updated 2025-08-13 UTC.
[null,null,["Last updated 2025-08-13 UTC."],[],[],null,["# enum StartDateTimeType (v202508)\n\n**Service** \n[AdRuleService](/ad-manager/api/reference/v202508/AdRuleService.StartDateTimeType) **ForecastService** [LineItemCreativeAssociationService](/ad-manager/api/reference/v202508/LineItemCreativeAssociationService.StartDateTimeType) [LineItemService](/ad-manager/api/reference/v202508/LineItemService.StartDateTimeType) [LiveStreamEventService](/ad-manager/api/reference/v202508/LiveStreamEventService.StartDateTimeType) **Dependencies** \n[LineItemSummary](/ad-manager/api/reference/v202508/ForecastService.LineItemSummary) \n▼\n**StartDateTimeType**\n\nSpecifies the start type to use for an entity with a start date time field.\nFor example, a [LineItem](/ad-manager/api/reference/v202508/ForecastService.LineItem) or [LineItemCreativeAssociation](/ad-manager/api/reference/v202508/LineItemCreativeAssociationService.LineItemCreativeAssociation).\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202508`\n\n| Enumeration | Description |\n|-----------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `USE_START_DATE_TIME` | Use the value in [startDateTime](#startDateTime). |\n| `IMMEDIATELY` | The entity will start serving immediately. [startDateTime](#startDateTime) in the request is ignored and will be set to the current time. Additionally, [startDateTimeType](#startDateTimeType) will be set to [StartDateTimeType.USE_START_DATE_TIME](/ad-manager/api/reference/v202508/ForecastService.StartDateTimeType#USE_START_DATE_TIME). |\n| `ONE_HOUR_FROM_NOW` | The entity will start serving one hour from now. [startDateTime](#startDateTime) in the request is ignored and will be set to one hour from the current time. Additionally, [startDateTimeType](#startDateTimeType) will be set to [StartDateTimeType.USE_START_DATE_TIME](/ad-manager/api/reference/v202508/ForecastService.StartDateTimeType#USE_START_DATE_TIME). |\n| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |"]]